For years, we've believed that around 2 billion planets in the galaxy are able to support alien life. But what if we were wrong? Anthony discusses how new knowledge of the Goldilocks Zone could mean the possibility of life on up to 60 billion planets! Read More: Further Away Planets 'Can Support Life" Say Researchers http://www.bbc.co.uk/news/uk-scotland-north-east-orkney-shetland-25639306 "The University of Aberdeen team, which included academics from the University of St. Andrews, said cold rocky planets thought uninhabitable might be able to support life beneath the surface." Life on Other Planets Could Be Far More Widespread, Study Finds http://phys.org/news/2014-01-life-planets-widespread.html "Earth-sized planets can support life at least ten times further away from stars than previously thought, according to academics at the University of Aberdeen." Increased insolation threshold for runaway greenhouse processes on Earth-like planets http://www.nature.com/nature/journal/v504/n7479/full/nature12827.html "The increase in solar luminosity over geological timescales should warm the Earth's climate, increasing water evaporation, which will in turn enhance the atmospheric greenhouse effect." Cloud modeling expands estimate of life-supporting planets http://news.uchicago.edu/article/2013/07/01/cloud-modeling-expands-estimate-life-supporting-planets "A new study that calculates the influence of cloud behavior on climate doubles the number of potentially habitable planets orbiting red dwarfs, the most common type of star in the universe." STABILIZING CLOUD FEEDBACK DRAMATICALLY EXPANDS THE HABITABLE ZONE OF TIDALLY LOCKED PLANETS http://iopscience.iop.org/2041-8205/771/2/L45/ "The habitable zone (HZ) is the circumstellar region where a planet can sustain surface liquid water." Habitable Zone For Planets Shown To Be Bigger Than Once Thought http://www.huffingtonpost.com/2013/12/12/habitable-zone-planets-sun-earth_n_4432033.html "Earth's place in the solar system is just right. It's not too hot, like Venus, and it's not too cold, like Mars, and this "Goldilocks zone" of habitability around other stars like the sun just might be bigger than thought, scientists say." STABILIZING CLOUD FEEDBACK DRAMATICALLY EXPANDS THE HABITABLE ZONE OF TIDALLY LOCKED PLANETS http://home.uchicago.edu/~/junyang28/Papers/Yang_Cowan_Abbot_Clouds_HZ_ApJL_2013.pdf "The Habitable Zone (HZ) is the circumstellar region where a planet can sustain surface liquid water." CIRCUMSTELLAR HABITABLE ZONES FOR DEEP BIOSPHERES http://www.lpi.usra.edu/meetings/lpsc2013/pdf/2931.pdf "The circumstellar habitable zone (HZ) is traditionally a thin heliocentric shell within which liquid water is thermally stable on the surface of an Earth-like planet." Extending the Habitable Zone for Red Dwarf Stars http://www.astrobio.net/exclusive/4585/extending-the-habitable-zone-for-red-dwarf-stars- "Stars known as red dwarfs might have larger habitable zones friendly to 'life as we know it' than once thought, researchers say." A dynamically-packed planetary system around GJ 667C with three super-Earths in its habitable zone http://www.eso.org/public/archives/releases/sciencepapers/eso1328/eso1328a.pdf "Since the discovery of the ?rst planets around other stars, Doppler precision has been steadily increasing to the point where objects as small as a few Earth masses can currently be detected around nearby stars." The Goldilocks Zone - NASA Science http://science1.nasa.gov/science-news/science-at-nasa/2003/02oct_goldilocks/ "Researchers are finding that life can thrive in some unexpected places." 60 Billion Alien Planets Could Support Life, Study Suggests http://www.space.com/21800-alien-planets-60-billion-habitable-exoplanets.html "Though only about dozen potentially habitable exoplanets have been detected so far, scientists say the universe should be teeming with alien worlds that could support life." 22% of Sun-like Stars have Earth-sized Planets in the Habitable Zone http://www.universetoday.com/106121/22-of-sun-like-stars-have-earth-sized-planets-in-the-habitable-zone/ "How common are planets like Earth? That's been a question astronomers and dreamers have pondered for decades, and now, thanks to the Kepler spacecraft, they have an answer. Will NASA's Ailing planet-Hunting Kepler Spacecraft Get New Mission? http://www.space.com/24197-nasa-kepler-planet-spacecraft-mission-aas223.html "A crucial deadline looms for the team that hopes to get NASA's hobbled Kepler space telescope back in the planet-hunting game." Gliese 667 Cc http://en.wikipedia.org/wiki/Gliese_667C_c "Gliese 667 Cc is an extrasolar planet orbiting around the star Gliese 667 C which is a member of the Gliese 667 triple star system." Watch More: Looking For 2nd Earth http://www.youtube.com/watch?v=Tqe14YJ9mwQ TestTube Wild Card: http://testtube.com/dnews/dnews-536-honey-is-magic?utm_source=YT&utm;_medium=DNews&utm;_campaign=DNWC Purple Planet = Alien Life http://www.youtube.com/watch?v

• published: 11 Jan 2014
• views: 12150