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A newly discovered alien planet may be one of the top contenders to support life beyond Earth!

superearth432 A newly discovered alien planet may be one of the top contenders to support life beyond Earth!A newly discovered alien planet may be one of the top contenders to support life beyond Earth, researchers say.

The newfound world, a “super Earth” called Gliese 163c, lies at the edge of its star’s habitable zone — that just-right range of distances where liquid water could exist.

“There are a wide range of structures and compositions that allow Gliese 163c to be a habitable planet,” Xavier Bonfils, of France’s Joseph Fourier University-Grenoble, told SPACE.com by email.

He went on to caution that several possible uninhabitable combinations exist as well.

Bonfils and an international team of astronomers studied nearly 400 red dwarf stars with the High Accuracy Radial Velocity Planet Searcher (HARPS), a spectograph on the 3.6-meter telescope at the European Southern Observatory’s La Silla Observatory in Chile.

Gliese 163c was one of two alien planets found orbiting the star Gliese 163, which lies about 50 light-years from Earth in the Dorado constellation. The team found indications of a third planet as well but cannot confirm it at this time.

Weighing in at about seven times the mass of Earth, Gliese 163c could be a rocky planet, or it could be a dwarfed gas giant, researchers said.

“We do not know for sure that it is a terrestrial planet,” Bonfils said. “Planets of that mass regime can be terrestrial, ocean, or Neptune-like planets.”

Orbiting at the inner edge of the habitable zone, Gliese 163c takes 26 days to zip around its parent star, which is considerably dimmer than our sun. The second planet, Gliese 163b, has an orbital period of only nine days, while the third unconfirmed planet circles from a distance.

Bonfils pointed out that there is about a 2 percent chance that Gliese 163c might pass between its star and the sun from Earth’s perspective. If so, scientists may be able to glean more information about the distant planet by watching it cross the face of its host star.
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