9 Exoplanets That Could Host Alien Life

9 Exoplanets That Could Host Alien Life Extrasolar planet An extrasolar planet, or exoplanet, is aplanet outside the Solar System. A totalof 861 such planets have been identifiedas of March 22, 2013. The Kepler missionhas detected over 18,000 additional transitevents, including 262 that may be ha…  en.wikipedia.org   . Gliese 163c The mass of Gliese 163c puts the planet in a gray zone. The planet is seven times the mass of Earth, which could make it a very large rocky planet or a dwarf gas giant. Gliese 163c whirls around its dim planet star every 26 days, at a distance of 50 light-years away from Earth. Its parent star is in the constellation Dorado. Tau Ceti e The planet candidate Tau Ceti e, which was detected in December 2012, is found just 11.9 light-years from Earth. This world is a "super-Earth" at least 4.3 times as massive as Earth. Depending on its atmosphere, Tau Ceti e could be a mildly hot planet suitable for simple life, or a scorching world like Venus Gliese 581d At least one study supposes that Gliese 581d might havea thick, carbon dioxide atmosphere. It is about seven   imes more massive than Earth, orbits a red dwarf star, and is a sister planet to the also-potentially-habitable Gliese 581g. At just 20 light-years away from the sun, Gliese 581d is essentially in Earth's backyard.0 - - 0   HD 85512b HD 85512b was announced in 2011 as part of a treasure trove of 50 planets discovered by the High Accuracy Radial velocity Planet Searcher instrument, or HARPS, in Chile. This planet is about 3.6 times more massive than Earth. It lives about 35 light-years away from Earth's sun, in the constellation Vela (the Sail). Researchers are hoping to one day figure out if there is water on its surface. .HD 40307g "Super-Earth" HD 40307g orbits comfortably inside the habitable zone of its parent star. It lies about 42 light-years away from Earth in the constellation Pictor. It is so close by that future telescopes may be able to peer at its surface. It orbits its parent star about 56 million miles (90 million kilometers) away, which is just over half of the Earth-sun distance of 93 million miles (150 million kilometers.) Kepler-22b While Kepler-22b is bigger than Earth, it circles a star that is quite close in size and temperature to Earth's sun. Kepler-22b is 2.4 times Earth's size and, assuming its greenhouse effect is similar to Earth's, has an estimated surface temperature of 72 degrees Fahrenheit (22 degrees Celsius.) Its star system is about 600 light-years away from Earth's sun, in the constellation Cygnus.  Gliese 667Cc Another "super-Earth", Gliese 667Cc is also close by Earth: about 22 light-years away in the constellation Scorpius. The planet is at least 4.5 times bigger than Earth, and takes 28 days to make an orbit around its parent star. GJ 667C – the parent star – is actually part of a triple-star system. The star is an M-class dwarf star that is about a third of the mass of Earth's sun Gliese 581g This planet is a controversial find. It was discovered in 2010, but there has been difficulty in getting it confirmed. Still, the University of Puerto Rico at Arecibo calls Gliese 581 the top candidate for alien life. If confirmed, this rocky world is about 20 light-years away from Earth's sun, and is two to three times as massive as Earth. It orbits its parent star, Gliese 581, about every 30 days in the constellation Libra. RelatedImages: Closest-Ever Alien Planet, the Earth-Size Alpha Centauri Bb Sourese:MSN news FOR MORE PLEASE SEE: Exoplanets and Alien Solar Systems An information resource about exoplanets and alien solar systems, with tutorials onexoplanets and other topics in astrophysics. The Book | Tutorial | FAQ | Blog | Gateway exoplanets.co (Stars we see in te night sky are another worlds waiging to be discovered.. Best wishes... Hussain Almousawi)