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Astronomers Searching for Exoplanets - Life on Earth and in the Universe Documentary

  • Exoplanet Hunter: In search of new Earths and life in the Universe ★ Travelling Between Galaxies


    On November 4, 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarf stars within the Milky Way galaxy. The nearest such planet may be 12 light-years away.

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  • Interstellar voyage to find the Second Earth | Space Documentary 2021


    I do not own this video. It is owned by ABC Australia. Interstellar voyage to find the second Earth - space documentary
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    A documentary showcasing interstellar travel to visit an Earth-like planet, a bonified Earth 2.0 to see if there is life on it. Follow this amazing adventure in state of the art CGI and with the world's leading scientists.

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  • Does Alien Life Exist - Most Compelling Evidence Of Alien Existence | Space Documentary 2020 Full HD


    Does Alien Life Exist - Most Compelling Evidence Of Alien Existence | Space Documentary 2020 Full HD
    Some say it’s obvious we’re not alone, others scorn the very idea and still others yet will hauntingly report their own experiences of alien probings following their casual night-time stroll through the fields of small town America. But with everything from increasingly bizarre reportings from increasingly credible sources, to basic mathematical probability suggesting the likelihood of alien life, these days, scepticism is harder won. Whatever your opinions, you may well find that the following examples have some impact on them.
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  • Search for life in space Documentary national geographer Watch in 2019


    Search for life in space Documentary national geographer Watch in 2019

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  • 3 Billion Star Systems SUPER EARTHS DOCUMENTARY Odd Exoplanet Categories are Beyond Surprising


    The super-Earth exoplanet 55 Cancri e, depicted with its star in this artist’s concept, likely has an atmosphere thicker than Earth’s but with ingredients that could be similar to those of ...

  • Planets: The Search for a New World | Space Science | Episode 4 | Free Documentary


    Space Science Episode 4: Planets - the search for a new world
    Not until 2015 was this promising exoplanet tracked down by NASA telescopes. The geophysical characteristics indicate Earth-like temperatures and even water in liquid form is likely. Meanwhile, astrophysicists suspect a solar system similar to ours around each star; discovering more and more Earth-like celestial bodies. Physicist Prof. Dr. Ulrich Walter explains in this episode of Spacetime, the dynamics involved in the search for extraterrestrial life today.

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    Free Documentary is dedicated to bring high-class documentaries to you on youtube for free. With the latest camera equipment used by well-known filmmakers working for famous production studios. You will see fascinating shots from the deep seas and up in the air, capturing great stories and pictures from everything our beautiful and interesting planet has to offer.

    Enjoy stories about nature, wildlife, culture, people, history and more to come.

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  • 3 Exoplanets Discovered that Look Exactly Like Earth | Space Documentary | Beyond Realms S02EP01


    An international team of astronomers examined TESS’s rich trove of “light curves,” or changes in the brightness of stars as orbiting planets pass in front of them. This search for shadows relies on extremely sensitive detectors behind TESS’s four cameras that can pick up dips in stellar brightness as tiny as 0.1% or even less.

    “It’s an incredible body of work – a rich stockpile of exoplanet candidates for the community to mine and explore for years to come,”

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  • Planet Hunters: Billions of Habitable Planets in the Universe | Free Documentary


    Planet Hunters: Billions of Habitable Planets in the Universe | Space Documentary

    Space Exploration: The Age of Hubble:

    Are we alone in the universe? We may be very close to finding out. Planet Hunters follows the astronomers at the forefront of the search for habitable planets outside our solar system. The Kepler Space Telescope has discovered hundreds that may be Earth's twin. Scientists now believe there may be billions of habitable planets in the universe, and that extra-terrestrial life is almost certain to exist. Can we detect it?
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    #FreeDocumentary #Documentary #PlanetHunters
    Free Documentary is dedicated to bringing high-class documentaries to you on YouTube for free. With the latest camera equipment used by well-known filmmakers working for famous production studios. You will see fascinating shots from the deep seas and up in the air, capturing great stories and pictures from everything our beautiful and interesting planet has to offer.

    Enjoy stories about nature, wildlife, culture, people, history and more to come.

  • Exoplanets From Hell - Life In Other Planets In The Universe


    In this Space and universe video documentary, we are going to present you the exoplanets which are not suitable for living in our world i.e., exoplanets from hell. Watch this space and universe documentary to understand about hot or planets which are not suitable for sustaining life.

    Watch this Planets from hell video documentary to learn everything about the different planets in the universe, life in other planets in the universe, is life exist only on earth, etc.

    Watch Exoplanets From Hell - Life In Other Planets In The Universe (Documentary) here.

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  • Scientists Discovered 24 Planets Even Better for Life Than Earth


    Scientists Discovered A Potentially Habitable Super Earth!!
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    Scientists have been finding exoplanets that could be potentially habitable
    for some time now. There are hundreds of millions of them out there, and more found every day. There isn’t a planet like ours anywhere in the universe that we know of. But now scientists say they have found exoplanets that could be more habitable than the Earth… but do they really exist?

    #earth #space #universe #moon #sun

  • The Milky Way Galaxy Planets | Space Documentary 2020 Full HD 1080p


    The Milky Way Galaxy Planets | Space Documentary 2020 Full HD 1080p
    The Milky Way Galaxy Planets | Space Documentary 2020 Full HD 1080p
    The Milky Way Galaxy Planets | Space Documentary 2020 Full HD 1080p
    The Milky Way Galaxy Planets, Amazing HD Exploration - BBC Documentary

    This video gives an impression of how common planets are around the stars in the Milky Way. The planets, their orbits and their host stars are all vastly magnified compared to their real separations. A six-year search that surveyed millions of stars using the microlensing technique concluded that planets around stars are the rule rather than the exception. The average number of planets per star is greater than one. This means that there is likely to be a minimum of 1,500 planets within just 50 light-years of Earth.

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  • The Search For A New Viable Planet | Planet Hunters | Spark


    The first extra-solar planet – or exoplanet – was only discovered in 1995. Now, a new space-based telescope has discovered thousands more, and some of them may be just like Earth.
    Planet Hunters follows the astrophysicists at the forefront of the search for Earth’s twin, and tells the little-known story of the two Canadians who invented the technique that made modern planet-hunting possible. Gordon Walker and Bruce Campbell also detected the first exoplanet ever discovered, but that’s not what the history books say…

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    #kepler186f #Expoplanet #spark #sparkdocumentary #sciencedocumentary

  • Kepler Telescope Found New Planets Better Than Earth


    Kepler Telescope Found New Planets Better Than Earth
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    The Kepler Telescope was built for one purpose; to look at a certain patch in the Milky Way in search of exoplanets.

    The exoplanet hunter observed over hundreds of thousands of stars and discovered thousands of exoplanets during its lifetime.

  • JOURNEY TO THE EDGE OF THE Universe | Space Documentary 2020 Full HD 1080p


    JOURNEY TO THE EDGE OF THE Universe | Space Documentary 2020 Full HD 1080p
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  • Finding Life Beyond Earth Are we Alone NOVA HD


    Take a spectacular trip to distant realms of our solar system to discover where secret forms of life may lie hidden. Combining the latest telescope images with dazzling animation, this program immerses audiences in the sights and sounds of alien worlds, while top astrobiologists explain how these places are changing how we think about the potential for life in our solar system. We used to think our neighboring planets and moons were fairly boring—mostly cold, dead rocks where life could never take hold. Today, however, the solar system looks wilder than we ever imagined.
    Powerful telescopes and unmanned space missions have revealed a wide range of dynamic environments—atmospheres thick with organic molecules, active volcanoes, and vast saltwater oceans. This ongoing revolution is forcing scientists to expand their ideas about what kinds of worlds could support life. If we do find primitive life-forms elsewhere in the solar system, it may well be that life is common in the universe—the rule, and not the exception.

  • Enigmas of the Solar System | Documentary Boxset | Knowing the Planets


    The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, the dwarf planets and small Solar System bodies. Of the objects that orbit the Sun indirectly—the moons—two are larger than the smallest planet, Mercury.
    The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular.......

  • Looking for Another Earth? DEEP SPACE DOCUMENTARY Powerful Telescopes Reveal 300 Million of them in!


    Deep space research has taken huge strides forward in the last few years. The data from this research is revealing thousands of Earthlike planets exist, and some of them could harbor life as we know it. What is even more amazing are the statistics coming back from new almost futuristic telescopes. There are 100 billion stars in the milky way, if only 5% of these stars have habitable planets there could be as many as 300 million exoplanets ready to explore.

  • When will Alien Life be Found on Exoplanets?


    How long will it be before we find alien life on exoplanets? Exoplanet astronomer Dr. Ryan MacDonald explains how biosignatures can be found in exoplanet atmospheres. He also reveals how the discovery of the first close-in planet around a white dwarf could dramatically accelerate the hunt for alien life beyond the solar system with the James Webb Space Telescope.

    ***** Chapters *****

    0:00 - Introduction
    1:15 - Worlds Beyond Earth
    2:26 - Early Exoplanet Discoveries
    4:10 - Transiting Exoplanets
    5:26 - Transmission Spectroscopy
    6:24 - Exoplanet Atmospheres
    9:15 - The James Webb Space Telescope
    10:33 - Signatures of Life on Earth
    14:57 - Exoplanet Biosignatures
    16:34 - The Small Star Opportunity
    17:52 - Case Study: TRAPPIST-1
    19:44 - When Stars Die
    20:51 - White Dwarfs
    22:27 - The Discovery of WD 1856b
    24:04 - Earth-like Planets Around White dwarfs
    25:10 - The White Dwarf Opportunity

    ***** Animations and media *****

    Most animations and graphics used here were produced by NASA, ESA, and ESO. Special thanks to Jack Madden for producing the renders of an Earth-like planet around a white dwarf.

    ***** Music *****

    All credit to Aakash Gandhi for creating the two inspirational tracks included in this video and for releasing them into the public domain.

    ----- Further information -----

    ● 'Revealing the Nature of Exoplanetary Atmospheres' (my PhD thesis):

    ● 'The Astrobiology Primer v2.0':

    ● 'How to Characterize Habitable Worlds and Signs of Life':

    (free open access):

    ● 'Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life':

    ● 'The White Dwarf Opportunity: Robust Detections of Molecules in Earth-like Exoplanet Atmospheres with the James Webb Space Telescope':

    (free open access):

    ● 'A giant planet candidate transiting a white dwarf':

    (free open access):

    ● 'Atmospheric Retrieval of Exoplanets' (Martian Colonist video):

    #Exoplanet #AlienLife #JWST

  • Space Science Documentary - Searching for ANOTHER Earth - The Planet Hunters Guide


    The planets around our star, the sun, are not the only ones out there. For years, people have wondered what exists beyond the one star, eight planets, and 710,000 minor planets (including dwarf planets, asteroids, etc.) in our Solar System. In 600 BC, exoplanets were discussed as we would discuss the idea of alternative universes today – once Aristotle landed on the idea of Earth being unique, that was that and all speculation was shut down. It wasn’t until the Renaissance that the idea was revisited by Giordano Bruno. He claimed that there are ‘countless suns and countless Earths rotating around their suns in exactly the same way’, and that we only see their suns rather than the planets themselves. His teachings led him to be executed for blasphemy and heresy, and his idea was rejected.

    In the 20th century, ideas moved more rapidly. Isaac Newton also hypothesised that exoplanets exist, but had no means of testing his hypothesis. In 1952, Otto Struve claimed that we only know of our star and our Solar System but that there is more beyond. In 1992, Wolszczan and Frail found other stars at the end of their lives (pulsars), and three years later Mayor and Queloz observed a Jupiter-sized planet (now termed a “hot Jupiter”) that orbit around their stars. The idea that exoplanets exist had sunk in.

  • Search for Second Earth Part 2 ..2018 documentary


    This four-part documentary series brings to life, in breathtaking CGI, an epic future journey that our species has already begun: the voyage of an autonomous spacecraft to a planet beyond our Solar System.

    Astronomers have long peered out across the stars in hopes of learning more about where and how life could exist outside of Earth. They've discovered more than 4,000 exoplanets since the late 1990s, but these are just a few that could have the best chance of harboring life.

    In order to find life elsewhere in the cosmos, we must first find water. These incredible worlds fall within the habitable zone, meaning they're not too close to their star that surface water evaporates, and they're not too far that it might freeze. Some exoplanets are thought to be rocky bodies, while others may be full ocean worlds.

    These exoplanets orbit a range of star types, from M-type stars, known as red dwarfs, to sun-like G-type stars such as Tau Ceti. In the coming years, scientists will continue to learn more and more about these strange exoplanets

    Kepler-186 f was the first Earth-sized exoplanet found in the habitable zone. It has an orbit of 130 Earth days and is less than 10 percent larger than Earth.

    It seems like it would be a great candidate to house liquid water, and, in turn, life. But there's a catch: It's a whopping 490 light-years away from Earth, in the constellation Cygnus.

    Discovered in 2016, K2-72 e, which orbits the K2-72 star in the Aquarius constellation, is a rocky, M-Warm Terran exoplanet just 217 light-years away from Earth.

    Discovered in 2019, Teagarden Star b is a type of rocky exoplanet called a super Earth. It has an orbital period of 4.9 Earth days and mass 1.05 times that of Earth. This star system is only 12.5 light-years away from Earth.

    Discovered alongside Teagarden's Star b in 2019, Teagarden's Star c is also a potentially rocky super Earth. It has an orbital period of 11.4 Earth days and mass 1.11 times that of Earth. This star system is only 12.5 light-years away from Earth.

    Proxima Centauri b
    Proxima Centauri b orbits Earth's closest stellar neighbor, Proxima Centauri, just 4.22 light-years away. It has a mass of 1.27 Earths and orbits its star every 11.2 days. Scientists announced the exoplanet in 2016.

    TRAPPIST-1 d
    While scientists discovered the TRAPPIST-1 in 1999, three of its surrounding exoplanets followed in 2016. The star system is 40 light-years from Earth.
    Some data have suggested that TRAPPIST-1 d may have a ring of water around the exoplanet's terminator, or the line that demarcates the warm day side and chilly night side of the planet.

    TRAPPIST-1 f
    TRAPPIST-1 f has an orbital period of 9.4 Earth days and a mass .68 times that of Earth's.

    TRAPPIST-1 e is the fourth of TRAPPIST-1's exoplanets and the second within the habitable zone. A paper published in 2018 suggests that TRAPPIST-1e may have an iron core like Earth's and therefore may have a protective magnetosphere.

    TRAPPIST-1 g
    The largest of the TRAPPIST-1 exoplanets and the sixth from the star, TRAPPIST-1 g is thought to have an atmosphere that isn't rich in hydrogen, which signals that it evolved over the course of millions of years. This also means that, like its exoplanet neighbors, TRAPPIST-1 g is probably a rocky body.

    GJ 1061 c
    GJ 1061 c is one of three exoplanets orbiting the red dwarf Gliese 1061, which lies roughly 12 light-years away from Earth and is the 20th nearest star. It has an orbital period of about 6.7 Earth days.

    GJ 1061 d
    Gliese 1061, the star that GJ 1061 orbits, can be found in the Horologium constellation. The exoplanet circles its star once every 12.4 Earth days.

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  • THE SUN - Giver Of Life & Death Star | SPACETIME - SCIENCE SHOW


    SPACETIME - SCIENCE SHOW: It is the source of all life on Earth. The sun determines time and climate. A huge nuclear reactor full of seemingly infinite energy. A star whose presence all can feel firsthand. And yet only one star among billions in our galaxy. But the lifespan of the sun is finite. Its death will mean our death. The end of all life forms. But before its demise, our sun will demonstrate all its mighty power.

    The sun is at the end of its life cycle. Its diameter will expand and its luminosity will increase. The sun will swell into a red giant, swallowing the closest planet Mercury, and probably Venus and Earth as well. The Exodus of our solar system, as we know it. However, before that happens - life - as we know it, will be long gone. With the first initial expansion of the sun, the temperature on the surface of the earth will rise steadily. Our home planet will first turn into a desert planet. All higher life on earth scorched. In the end, the warming will be so great that the surface of the former Blue Planet will only consist of lava. But not only the high temperatures, even the changed UV spectrum of the sun will destroy every form of life on earth.

    In the end, the sun will have used up all of its hydrogen. What remains is a huge shell of helium. Shockwaves go through the star and after several explosions the sun throws off its outer shell. What's left is a glowing core of oxygen, carbon and helium no bigger than Earth. The red giant has become a white dwarf, which will cool down more and more. In the end, all that remains is a black, cold ball of slag and a planetary nebula from the remnants of the star's shell.

    When will it happen? In five to seven billion years. But the end of humanity will take place much earlier. In about 900 million years, the average temperature of our earth will have risen from the current 15°C to 30°C degrees. This will mean the end of life as we know it.
    The observation and research of the sun largely determines astrophysics. It forms the basis for understanding the structure of stars and the formation of planetary systems. Generations of people venerated or feared the sun. When the sun hid its face, it meant plague, death, and the end of the world.
    Only after the astronomer Nicolaus Copernicus had placed the sun at the center of our solar system did scientific exploration of the central star begin. Astronomy experienced a boom.
    In this episode Spacetime, Professor Ulrich Walter explains how stars and planetary systems are formed from ancient matter and supernova dust. How our sun came into being and how it works. Its construction and development over the billions of years of its lifetime. We study solar winds, eruptions and the black spots on our sun and what effects these phenomena have on our planet and life on Earth. We look at binary star systems and learn how light emerges. And Professor Walter shows us the end of the world: What happens when our sun dies?

    About the documentary series SPACETIME
    Take a look at the Earth from space: Prof. Dr. med. Ulrich Walter has fulfilled the dream of mankind. In 1993 he traveled to Earth orbit. For the science format Spacetime, the astronaut once again sets off for the universe. In this reportage series, the physicist and professor of space technology presents current space travel trends and pioneering discoveries in space research.
    The challenges of the dream call Astronaut, the new race of the space nations to the moon or the discovery of further Earth-like exoplanets: In this documentary series, Ulrich Walter proves how lifelike science can be and what answers space travel offers to some of the fundamental questions of human existence.
    In Spacetime, the viewer learns about the visions that space research is currently pursuing and what insights will change our future forever.

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    #Sun #Universe #Spacetime

  • Search for Life in the Universe Documentary - New Discoveries Never Before Seen


    Search for Life in the Universe Documentary - New Discoveries Never Before Seen

    Is there extra-terrestrial life out there? It now looks as though we can sketch out an answer to this enduring question. Leiden Observatory is helping to build new instruments to find the most promising exoplanets.

  • A Journey to Incredible Exoplanets


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    These days any person has the opportunity to follow the progress being made by mankind in space exploration. Thanks to numerous scientific investigations we have found out that the universe is unbelievably enormous and contains a great number of celestial objects.
    However, in all this diversity there are only several hundred worlds that we know of which resemble our planet. In the Milky Way alone the number of exoplanets is supposedly over a trillion...

    00:00 Intro
    00:50 TOI 700 d
    21:33 KEPLER-90
    31:27 GLIESE 832 C
    41:32 TRAPPIST-1
    50:25 CASTOR
    59:42 Final

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    #Exoplanets #Planets​ #Kosmo #Cosmos​ #Universe #Life

  • Bizarre Journey to the Outer Solar System DOCUMENTARY BOXSET These Planets Continue to Mystify Us


    Evidence of ninth planet found in outer reaches of solar system ... in the outer reaches of our solar system, US scientists announced on ... and follows a bizarre, highly elongated orbit in the distant solar system, said ... Although we were initially quite skeptical that this planet could exist, as we continued to ...


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  • Life On Distant Planets. The Search For Water


    Scientists Have Found A Planetary System Better Than Ours
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    Earth is a pretty special and unique planet. So far, we’ve haven’t found anything like it in the entire universe. But that doesn’t mean a super Earth doesn’t exist, in fact, they exist! And the chances are good for finding planets even better for life than our the Earth.

    Now the hunt is on to find liquid water, because where there is water, there might be life. A new telescope is set to launch on October 31st, 2021. It is packed with some amazing technology that might finally answer the big question: is there another Earth, or even a planet better than Earth just waiting to be discovered?

    The human race is about to find out…

  • The Search for Life in the Universe


    Are we alone? It’s a question that has obsessed us for centuries, and now we have the technology to do more than wonder. Scientists on the hunt for distant planets and extraterrestrial intelligence explore faraway galaxies and barely visible realms. Nobel Laureate Sir Paul Nurse journeys to the brink of discovery with Jill Tarter, David Charbonneau, and Steven Squyres to contemplate what it would mean to have company in the cosmos.

    The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.

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    Original Program Date: June 3, 2010
    MODERATOR: Paul Nurse
    PARTICIPANTS: David Charbonneau, Jill Tarter, Michael Russell, Steven Squyres
    We apologize for the poor sound quality but the information is just to valuable to not post. Thank you for your patience.

    Sir Paul Nurse Introduction 00:00

    Participant Introductions. 01:51

    Day 2,281 of the 90 day Mars Rover mission. 06:44

    The evidence for life on Mars. 10:10

    The Mars Rover Landing on Mars. 17:45

    How have we discovered all of the exoplanets? 19:29

    How small of a planet orbiting a star can you detect? 23:16

    Can we tell if these planets will support life? 30:04

    How did life begin on earth? 35:18

    What kind of life could live in the harsh environments of early earth? 42:13

    What would be the sign of extraterrestrial life on exoplanets? 47:25

    A reexamination of the habitability of planets orbiting stars. 59:15

    What is panspermia? 01:03:52

    Would life emerge from any planet that can sustain life. 01:10:00

    Why the up and downs with finding life on other planets. 01:14:35

    Lets say we find life... what does that change for humanity? 01:24:00

  • Exoplanets: The Search for New Worlds


    A few decades ago, we knew of no other planets beyond those in our solar system. Today, astronomers have confirmed over 700 planets circling other suns and believe billions more lay undiscovered. These new worlds have smashed conventional assumptions, revealing planets orbiting multiple stars, planets that don’t orbit stars at all, and at least one as airy as Styrofoam. The incredible boom in planetary diversity raises tantalizing prospects for an Earth analog that could harbor life—as we know it, and as we never imagined it.

    This program is part of The Big Idea Series, made possible with support from the John Templeton Foundation.

    The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.

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    Original Program Date: June 2, 2012
    MODERATOR: Dan Harris
    PARTICIPANTS: Natalie Batalha, Matt Mountain, Sara Seager

    Dan Harris's Introduction 00:00

    Participant Introductions 1:06

    Finding the first exoplanet. 2:36

    Carbon and water... the building blocks for life. 6:30

    Have you found any exoplanets that are just like earth? 12:45

    What is the habitable zone? 17:25

    How do we get to these exoplanets? 24:30

    Is finding life on other planets important? 33:20

    How do you find an exoplanet? 42:00

    Transiting planets are very valuable for measurements. 50:14

    What is the political side to finding exoplanets? 55:00

    How do planets form? 1:00:57

    What planets has Kepler discovered so far? 1:06:08

    What makes you want to do science? 1:12:04

    Does spending your time thinking big take away some of the small? 1:16:54

    We are in a unique period of discovery. 1:21:15

  • Is Alien ‘Life’ Weirder Than We Imagine: Who Is Out There?


    If we want to discover alien life out there in the universe, we first need to figure out where to look—and what we're even looking for. Will it be biological like us? Could it be artificial, or take some other form we haven't yet considered? And how do we find something so fundamentally different from ourselves? In this program, scientists devise plans for searching for beings beyond Earth while they grapple with the very definition of life.

    PARTICIPANTS: Lisa Kaltenegger, Caleb Scharf, Susan Schneider, Sara Walker

    MODERATOR: Nicole Stott


    This program is part of the BIG IDEAS SERIES, made possible with support from the JOHN TEMPLETON FOUNDATION.

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    - Film about the imaginative search for alien life 00:05
    - Introduction to the program by astronaut Nicole Stott 04:45
    - Introduction of participants 05:50
    - What is the definition of life? 07:09
    - How will we find signs of life elsewhere in the universe? 16:21
    - What are the parameters for looking for life on other planets? 19:36
    - What should the probes on Mars be looking for to find life? 24:58
    - The Fermi Paradox, where is everybody? 30:56
    - Have aliens avoided humans because we're too boring? 34:41
    - Can we use information theory to look for life in the universe? 39:13
    - Why is looking for alien life important to humankind? 44:13
    - Will life in the future be AI, should we be looking for other AI in space? 46:02
    - The Great Filter 48:52
    - Is artificial intelligence alive? 50:28
    - Is evolution the strongest force in the universe, how will it shape the future? 52:13
    - What lessons could humankind learn from the successes and failures of other alien species in the universe? 56:58
    - Why should we care about finding life elsewhere in the universe? 57:58


    - Produced by John Plummer
    - Associate Produced by Laura Dattaro
    - Opening film written / produced by John Plummer, animation by Derek Breur
    - Music provided by APM
    - Additional images and footage provided by: Getty Images, Shutterstock, Videoblocks

    This program was recorded live at the 2018 World Science Festival and has been edited and condensed for YouTube.

  • Life Beyond Earth, Part 3: Natalie Batalha | Nat Geo Live


    Dr. Natalie Batalha, a Kepler Mission scientist, is using technology that is out of this world—and out of this solar system—to locate exoplanets, some of which could be Earth-like planets that may be hosts to extraterrestrial life.
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    The National Geographic Live series brings thought-provoking presentations by today’s leading explorers, scientists, photographers, and performing artists right to you. Each presentation is filmed in front of a live audience at National Geographic headquarters in Washington, D.C. New clips air every Monday.

    Life Beyond Earth, Part 3: Natalie Batalha | Nat Geo Live

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  • This Is Not What Space Looks Like


    Amazing images of the far reaches of the universe are everywhere, but are they accurate? What does space really look like?

    Yes, Apollo Flew Through the Van Allen Belts Going to the Moon -
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    'Habitable' Exoplanets Might Not Be Very Earth-Like After All

    One of the most exciting moments in exoplanet science came in late February, when NASA's Spitzer Space Telescope announced the discovery of seven rocky planets orbiting in or near the habitable zone of their parent star, TRAPPIST-1, which lies 40 light years away from Earth.
    'The discovery sets a new record for greatest number of habitable-zone planets found around a single star outside our solar system,' NASA said in a statement.

    The Electromagnetic Spectrum

    The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes - the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation. The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.

    Truth Behind the Photos: What the Hubble Space Telescope Really Sees

    When Hubble beams down images, astronomers have to make many adjustments, such as adding color and patching multiple photos together, to that raw data before the space observatory's images are released to the public. Hubble doesn't use color film (or any film at all) to create its images. Instead, it operates much like a digital camera, using what's called a CCD (charge-coupled device) to record incoming photons of light.


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  • 10 Planets Outside Of Earth We Could Live On | Earth Like Planets Explained In Telugu | Dark Telugu


    Hey Guys How Are You Al... Dark Telugu Brings You 10 Planets Outside Of Earth And Earth Like Planets ....The longer we stay on Earth, the more apparent it becomes that maybe we should have a backup plan should we live long enough to completely dry ‘er up. On our quest to find the perfect place to call Second Home, we’ve come across these incredible exoplanets. Factoring in the Earth Similarity Index or ESI, we’ve compiled the Top 10 Earth-like planets discovered over the past decade ... so why late... watch and enjoy .... most interesting video....... watch, please like,share and subscribe.
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  • 10 Planet Discoveries That SCARE Astronomers | Space Discoveries 2020


    Strangest planets ever discovered by Nasa! These latest and recent space discoveries 2020 reveal some of the strangest planets ever discovered. There are some planets like earth and some so different. The universe contains so many planets that it is impossible to count. These amazing space discoveries are for sure something you have never seen before. Subscribe to Factnomenal for more amazing discoveries and space videos like this one!

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    Number 10: Kepler-10b
    We're kicking off our countdown with Kepler-10b. Kepler-10B is the first confirmed terrestrial planet to be discovered outside the Solar System by the Kepler Space Telescope.

    Number 9: Trappist 1-B
    In the ninth spot of our list, we have TRAPPIST 1-b, a planet that has beaten most of our planets in the moon department.

    Number 8: J1407B
    Also known as Super-Saturn, this planet is extremely intriguing due to how it looks.

    Number 7: CoRot-7 b
    In the seventh spot of our list, we have CoRot-7 B, a planet with such a short orbital period that it revolves around its host star in around 20 hours.

    Number 6: GJ 436 b
    This planet is a physical contradiction. Its temperature is about 822 degrees F, certainly hot enough to evaporate water.

    Number 5: Wasp 12B
    In the fifth spot of our list, we have Wasp 12B, a planet that's notorious for being elongated in a really strange shape due to the gravity of its parent star and its effect on it.

    Number 4: HD 106906 b
    It was originally suggested that the planet known as HD 106906 b shouldn’t exist due to it’s size and distance from its star.

    Number 3: 55 Cancri E
    In the third spot of our list, we have 55 Cancri E, a planet almost everyone on Earth would love if they could just traverse 40 light years to it.

    Number 2: Kepler 70 b
    We’ve seen blistering hot planets in this list, but none are as absolutely scorching as Kepler 70b, the hottest planet in the Universe.

    Number 1: Kepler-16b
    This is one of the few known circumbinary planets, which means that it circles around two stars, similar to Luke Skywalker's home planet in Star Wars.

  • Exoplanet Hunter: In search of new Earths and life in the Universe - Space Discovery Documentary


    This would correspond to around 20 earth analogs per square centimeter of the Earth. In 2013, a Harvard-Smithsonian Center for Astrophysics using statistical analysis of additional Kepler data suggested that there are at least 17 billion Earth-sized planets in the Milky Way.

  • ANOTHER EARTH | KEPLER 186F - Full Documentary


    If Alien exist where do they live and how do they live?
    Scientists say a world that's 490 light-years away qualifies as the first confirmed Earth-sized exoplanet that could sustain life as we know it — but in an environment like nothing we've ever seen.
    The planet, known as Kepler-186f, is more of an Earth cousin than an Earth twin, Elisa Quintana, an astronomer at the SETI Institute at NASA Ames Research Center, told the journal Science. Quintana is the lead author of a report on the planet published by Science this week.
    This discovery does confirm that Earth-sized planets do exist in the habitable zones of other stars, Quintana said during a Thursday news briefing at NASA Headquarters.
    Kepler-186f goes around an M-type dwarf star that's smaller and cooler than our sun. But it orbits much closer to its parent star than Earth does, within what would be Mercury's orbit in our own solar system. Those two factors combine to produce an environment that could allow for liquid water on the surface, assuming that the planet had a heat-trapping atmosphere.

    The star, to our eyes, would look slightly orange-y, about a third again as big as our sun but only a third as bright, said co-author Thomas Barclay, a staff scientist for NASA's Kepler mission who is also affiliated with NASA and the Bay Area Environmental Research Institute. At midday, Kepler-186f's landscape might look similar to what we see on Earth an hour before sunset, he told NBC News.
    Or it might not: If the planet lacked an atmosphere to retain and redistribute its sun's warmth, it would be a cold, dry, lifeless world.

    Kepler-186f probably rates as the most potentially Earthlike planet discovered so far, said Jim Kasting, a geoscientist at Penn State University who did not play a role in the Science study. But he told NBC News that it's still less likely to be habitable than planets around more sunlike stars. Even better prospects for alien habitability might well be identified in the months and years to come.

    How the world was found

    Kepler-186f is just the latest discovery to be pulled out of terabytes' worth of data collected by the Kepler mission. Before it went on the fritz last year, the Kepler space telescope stared at more than 150,000 stars in a patch of sky, looking for the telltale dimming of starlight as planets passed over the stars' disks. Nearly 1,000 exoplanets have been confirmed using Kepler data, and almost 3,000 more candidates are still awaiting confirmation.

    It takes years of observation to confirm the pattern of dimming and brightening that's associated with alien planets, particularly if the planets are small and far from their parent stars. In February, astronomers reported that at least four worlds circled the dwarf star known as Kepler-186 or KOI-571. In this week's Science paper, Quintana and her colleagues confirm the existence of Kepler-186f as the fifth and outermost world.
    They report that Kepler-186f is about 10 percent wider than Earth, tracing a 130-day orbit around its sun at a mean distance of 0.35 astronomical units. (An astronomical unit is the distance between Earth and our sun, which is 93 million miles or 150 million kilometers.) That would put Kepler-186f on the cooler, outer side of the star's habitable zone — the range of orbital distances where liquid water could exist on a planet's surface.

    Astronomers have confirmed the existence of other planets in their stars' habitable zone, but those prospects are super-Earth-size. Smaller habitable-zone candidates also have been found, but they have yet to be confirmed as planets.

    Barclay said Kepler-186f was particularly promising because it's less than 1.5 times the size of Earth. Planets in that size range are more likely to be rocky with a thinner atmosphere, like Earth, Mars and Venus. But worlds exceeding that size stand a better chance of retaining a thick atmosphere of hydrogen and helium, like the giant planet Neptune.

    While those planets also could be rocky, they don't remind us of home, Barclay said.
    Could we actually detect signs of life on Kepler-186f? That's a tough one. The astronomers behind the discovery acknowledge that the planet might be just too far away for follow-up studies. The SETI Institute has been searching for radio signals from the Kepler-186 system over a wide frequency range (1 to 10 GHz), but so far nothing has been detected.


  • Are There Other Earths: The Odds of Life Around Nearby Stars


    Scientists, wielding sensitive new telescopes and big data tools, have detected planets around thousands of stars; some Sun-like and some very different from our star. Many newly discovered exoplanets lie in habitable zones, where liquid water may support the chemistry that enables biology. How will astronomers discover if we have company in the cosmos and where they live?

  • Exoplanets Documentary - The Search For Other Worlds


    Exoplanets Documentary - The Search For Other Worlds.

    The discovery of the first exoplanet or extra solar planet in 1995 changed the field of astronomy for ever. In only the last 25 years we have confirmed the existence of exoplanets. There are about 4,118 confirmed exoplanets. So far all of the planets found are withing the milky way galaxy. But space is an endless frontier and astronomers are determined to find inter galactic planets as well.

    In this short documentary, you will learn about the two main ways astronomers use to find exoplanets: The transit method and the Doppler spectroscopy method a.k.a the wobble method. We will also discover some of the most interesting exoplanets ever detected.

    #exoplanets #space #sciencetime

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  • ANOTHER EARTH: Alien Planet - Space Documentary HD


    We Are Not Alone In The Universe
    I cannot imagine any single discovery that would have more impact on humanity than the discovery of life outside of our solar system. There is a human-centric, Earth-centric view of life that permeates most cultural and societal thinking. Finding that there are multiple, perhaps millions of origins of life and that life is ubiquitous throughout the universe will profoundly affect every human.

    We live on a microbial planet. There are one million microbial cells per cubic centimeter of water in our oceans, lakes, and rivers; deep within the Earth's crust and throughout our atmosphere. We have more than 100 trillion microbes on and in each of us. The Earth's diversity of life would have seemed like science fiction to our ancestors. We have microbes that can withstand millions of Rads of ionizing radiation; such strong acid or base that it would dissolve our skin; microbes that grow in ice and microbes that grow and thrive at temperatures exceeding 100 degrees C. We have a life that lives on carbon dioxide, on methane, on sulfur, or on sugar. We have sent trillions of bacteria into space over the last few billion years and we have exchanged material with Mars on a constant basis, so it would be very surprised if we do not find evidence of microbial life in our solar system, particularly on Mars.

    The recent discoveries by Dimitar Sasselov and colleagues of numerous Earth and super-Earth-like planets outside our solar system, including water worlds, greatly increases the probability of finding life. Sasselov estimates approximately 100,000 Earth and super-Earths within our own galaxy. The universe is young so wherever we find microbial life there will be intelligent life in the future.

    Expanding our scientific reach further into the skies will change us forever.

    #aliens #ufo #arewealone #trending

  • Alien Planet Beyond Our Solar System | Earth Like Planet - Space Documentary


    Alien world beyond our solar system.
    Are we alone? This is the question which every one is willing to get the right answer but the main question. Since there universe is so wast and mysterious with trillions of planets and billions of galaxies we are still looking up there to find Earth like planet. Scientists has been discovered many planets where the condition is inhabitable for humans but the difficult part is can we reach there anyhow?

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  • Extraterrestrial Life: The Search For Living Planets | space and astronomy


    Are there Extraterrestrials and could they become dangerous to us? What happens if we make hostile Aliens aware of us? Could the Aliens come to destroy our earth? Could we communicate with them?

    This channel offers you full episodes of high quality documentaries. Enjoy and don't forget to subscribe :)


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    #Extraterrestrial #Aliens

  • Finding Earth Like Planet - Full Documentary HD #Advexon


    Planet Just Like The Earth in Our Solar System - Full Documentary HD

    Planet Hunter
    A team of researchers just used the European Southern Observatory’s (ESO’s) High Accuracy Radial velocity Planet Searcher (HARPS) to discover a low-mass alien planet — also known as an “exoplanet” — orbiting the red dwarf star Ross 128. Notably, this planet has a mass that is similar to Earth’s.

    In fact, it’s thought that the planet, formally known as Ross 128 b, could be similar to Earth in terms of both its size and surface temperature. And it is just 11 light-years from our solar system, making it the second-closest temperate planet to ever be detected. Ultimately, the little world comes in just after Proxima b.

    “This discovery is based on more than a decade of HARPS intensive monitoring together with state-of-the-art data reduction and analysis techniques,” said Nicola Astudillo-Defra of the University of Geneva, who co-authored the paper outlining the exoplanet’s discovery, in a press release. “Only HARPS has demonstrated such precision, and it remains the best planet hunter of its kind, 15 years after it began operations.”

  • The Planet Hunters | Clouds of the exo-planets to discover the Living Universe | Space


    The Planet Hunters
    The next great voyage of human exploration has already begun: the search for life on planets orbiting distant stars. With extraordinary CGI, the world's most inspiring scientists, via extreme environments on Earth and around the solar system, the film takes viewers aboard the next generation of space ships, across the cosmos and beneath the clouds of the exo-planets to discover The Living Universe.
    Part 1: 'The Planet Hunters' For as long as we’ve had eyes to see and minds to wonder we’ve marveled at the stars. Since the discovery of the first so-called exoplanet in 1994, the Planet Hunters have transformed the way we see the universe. It is the year 2157, and spacecraft Artemis enters the final phase of construction.
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  • Deep Space Discoveries Indicate Spectacular Objects Exist Far Beyond our Solar System


    With the giant powerful #telescopes now being made available to #astronomers, we are at the verge of discovering previously unfathomable details about #exoplanets. The Kepler mission showed us that #exoplanets were not rare, and there are millions — or trillions — out there, waiting for our discovery. The first-ever exoplanet discovered was born at least a 100 times farther away from its Sun than where it is now.

  • Hunt for alien life zooms in on newly discovered solar system


    Astronomers have identified seven Earth-sized planets orbiting a star that's just a mere 230 trillion miles from our own planet, raising the tantalizing prospect of life in a solar system beyond our own. Science correspondent Miles O’Brien joins Hari Sreenivasan to discuss how they made the discovery and what it means.

  • Legacy of NASA’s Kepler Space Telescope: More Planets Than Stars


    After 9 years in space collecting data that revealed our night sky to be filled with trillions of hidden planets, NASA is ending the Kepler space telescope’s science operations. Kepler discovered over 2,600 planets, some of which could be promising places for life.

  • Is There Life on Earth?


    I mean… how do you really know?
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    If we lived light years from Earth, how would we know there’s life here? Let’s take a look at the search for extraterrestrial life on habitable exoplanets, and discover what biosignatures would show someone else that we’re here.


    Kaltenegger, Lisa. “How to Characterize Habitable Worlds and Signs of Life.” Annual Review of Astronomy and Astrophysics 55, no. 1 (August 18, 2017): 433–85.

    Sagan, Carl. “Is There Life On Earth?” Engineering and Science 35, no. 4 (1972): 16–19.

    Sagan, Carl, W. Reid Thompson, Robert Carlson, Donald Gurnett, and Charles Hord. “A Search for Life on Earth from the Galileo Spacecraft.” Nature 365 (October 21, 1993): 715.

    Schwieterman, Edward W., Nancy Y. Kiang, Mary N. Parenteau, Chester E. Harman, Shiladitya DasSarma, Theresa M. Fisher, Giada N. Arney, et al. “Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life.” Astrobiology 18, no. 6 (June 2018): 663–708.

    Seager, Sara, and Drake Deming. “Exoplanet Atmospheres.” Annual Review of Astronomy and Astrophysics 48, no. 1 (August 2010): 631–72.


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    It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
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    Writer: Joe Hanson
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    Produced by PBS Digital Studios
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  • Exoplanet Hunter: In search of new Earths and life in the Universe


    Professor Didier Queloz hunts for extreme worlds and Earth twins in Cambridge’s Battcock Centre for Experimental Astrophysics. Here, he tells of the moment in 1995 when he became the first to discover a planet that orbits a star other than our Sun.

    Astronomers had speculated as to the existence of these distant worlds – called exoplanets – but, until the discovery of 51 Pegasi b by Queloz and Professor Michel Mayor at the University of Geneva, no planet other than those in our own solar system had ever been found.

    Of the 1,900 or so confirmed exoplanets that have now been found, many are different to anything we ever imagined, challenging existing theories of planet formation.

    For instance, 51 Peg resembles the gas giant Jupiter. But, unlike our distant cousin, which is located in the further reaches of our solar system and takes 10 years to orbit the sun, 51 Peg ‘hugs’ its sun, orbiting every four days. It’s been hailed as an example of a whole new class of ‘roaster planets’ or ‘hot Jupiters’ and has prompted scientists to wonder if large planets are able to migrate closer to their suns over millions of years.

    Read more here:

  • Finding the Next Earth: The Latest Results from Kepler


    Oct. 17, 2012
    Dr. Natalie Batalha (NASA Ames Res. Ctr.)

    Dr. Batalha (Mission Scientist for the Kepler Mission, searching for exoplanets) describes the techniques used by the Kepler team to identify planets orbiting other stars and updates us on the remarkable progress they are making in the search for Earth-sized worlds. She discusses the planets already found and shares what we know so far about the thousands of candidate planets that are in the Kepler data.

  • Finding a New Earth - Over 1500 New Planetary Systems have been Discovered


    Over 1500 new planetary systems have been discovered, many of which include planets quite different from those in our own Solar System. A key step towards finding “Earth 2.0” will be to identify rocky planets that occupy the “Habitable Zone” of their stars. Dr. Kane describes what the idea of a Habitable Zone means and shows examples of planets that lie in their star’s Habitable Zone (even if the star is not like our Sun.)

  • The Search For Earth-Like Planets - Version 1


    See the expanded and updated version of this show on...

    The search for Earth-like planets is reaching a fever-pitch. Does the evidence so far help shed light on the ancient question: Is the galaxy filled with life, or is Earth just a beautiful, lonely aberration? If things dont work out on this planet Or if our itch to explore becomes unbearable at some point in the future Astronomers have recently found out what kind of galactic real estate might be available to us. Well have to develop advanced transport to land there, 20 light years away. The question right now: is it worth the trip?

    If things don't work out on this planet...

    Or if our itch to explore becomes unbearable at some point in the future...

    Astronomers have recently found out what kind of galactic real estate might be available to us.

    We'll have to develop advanced transport to land there, 20 light years away.... But that's for later.

    The question right now: is it worth the trip? The destination is a star that you can't see with your naked eye, in the southern constellation Libra, called Gliese 581.

    Identified over 40 years ago by the German astronomer Wilhelm Gliese, it's a red dwarf with 31% of the Sun's mass... and only 1.3% of its luminosity.

    Until recently, the so-called M Stars like Gliese 581 flew below the radar of planet hunters.

    They give off so little energy that a planet would have to orbit dangerously close just to get enough heat.

    Now, these unlikely realms are beginning to show some promise... as their dim light yields to precision technologies... well as supercomputers... honed in the battle to understand global changes on this planet... Earth.

    Will we now begin to detect signs of alien life?

    Or will these worlds, and the galaxy itself, turn out to be lifeless... and Earth, just a beautiful, lonely aberration?

    To some, like astronomer and author Carl Sagan, the sheer number and diversity of stars makes it, as he said, far more likely that the universe is brimming over with life.

    This so-called many worlds view can be traced back to ancient observers... in China, India, Greece and Egypt. The Qur'an, the Talmud, and many Hindu texts all imagined a universe full of living beings.

    In the 16th Century, this view got a boost from astronomer and mathematician Nikolas Copernicus... who came to believe that Earth is not the center of the universe, but revolves around the Sun.

    Seven decades after Copernicus, Galileo Galilei used his newly developed telescope to show that our Sun was just one among countless other stars in the universe.

    By the modern era, the many worlds view held sway in scientific circles. A variety of thinkers considered what and who inhabited worlds beyond our own.

    From Martians desperate to get off their planet... to alien invaders intent on launching pre-emptive strikes against ours... or simple life forms on an evolutionary track to complexity.

    But other thinkers have been struck by a different view.

    The Greek philosophers Aristotle and Ptolemy believed that humans and Earth are unique.

    With the spread of Christianity, this Ptolemaic system became widely accepted.

    The latest variation on this theme is what's called the Rare Earth hypothesis. It holds that Earth and sophisticated life were the result of fortuitous circumstances that may not be easy to find again in our galaxy.

    Does the current search for planets shed light on this debate... sending it in one direction or the other?

    So far, our only good reference for recognizing an Earth-like planet is... Earth.

    It does have some fortuitous characteristics... it's dense, it's rocky -- with a complex make-up of minerals and organic compounds -- and it has lots and lots of water.

    It's also got a nearly circular orbit around the Sun, at a distance that allows liquid water to flow... not too close and not too far away, in the so-called Habitable Zone.

    That's defined as the range of distance from a parent star that a planet would need to maintain surface temperatures between the freezing and boiling points of water.

    Of course, that depends on the size of the planet, the make-up of its atmosphere, and a host of other factors.

    And whether the parent star is large; medium like the Sun; or small.

    Some scientists also believe we live in a Galactic Habitable Zone. We're close enough to the galactic center to be infused with heavy elements generated by countless stellar explosions over the eons...

    But far enough away from deadly gamma radiation that roars out of the center.

    If there is a galactic habitable zone... it's thought to lie 26,000 light years from the center... about where we are... give or take about 6,000 light years.

  • Finding life beyond Earth


    From our free online course, “Super-Earths And Life”:

    Harvard's Dr. Dimitar Sasselov tells the story of how we might discover life outside our solar system.

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