1) Gliese 581 g: Currently, this planet hosts the best possibility for being habitable. It orbits around Gliese 581. This star is a red dwarf star, which means that it is far cooler and smaller than our own Sun. As such, any habitable world would need to orbit much closer to the star, otherwise the planets would be nothing more than frozen wastelands. This planet is located about 20 light-years from Earth (making Gliese 581 our Sun’s 89th closest star). Gliese 581 g has an orbital period of 37 days, orbits at a distance of 0.15 Astronomical Units (which is close enough to receive enough heat and light from the star to sustain liquid water and, thus, life). An added bonus? This planet is 3-4 times more massive than Earth, which might help with our population issues.
Posted on: Sun, 24 Nov 2013 12:29:20 +0000
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