Another ‘super-Earth’ is discovered: Does it have life?

Another ‘super-Earth’ is discovered: Does it have life?

Astronomers discover another Earth-like exoplanet.

About 2,700 light-years away from Earth is another planet thought of by astronomers as the most Earth-like alien planet discovered so far. Well, maybe a “super-Earth.”

According to astronomers, planet Kepler 69c has a radius 1.5 times bigger than Earth’s, putting it into the class of planets that are two to 10 times the size of our planet.

Kepler 69c especially peaked the astronomers’ interest because it happens to live within its solar system’s goldilocks zone. A goldilocks zone is the area in which liquid water can exist, where the planet neither freezes nor becomes too hot. Though the presence of water does not guarantee life on another planet, it definitely doesn’t hurt the hope.

“This was very exciting because it’s our first habitable-zone super-Earth around a sun-type star,” said astronomer Natalie Batalha, a Kepler co-investigator at NASA’s Ames Research Center in Moffett Field, Calif. She spoke at the 221st meeting of the American Astronomical Society in January 2013. The planet candidate’s discovery was made public at the meeting.

The Kepler 69c is actually part of the Kepler-69 planetary system, of which 69b is the only other one included. Kepler 69c is the only one of the two that is classified as a super planet. Kepler 69c takes 23 days to orbit around its sun.

William Borucki, lead author of the Kepler-62 system paper in Science, said “Kepler has brought a resurgence of astronomical discoveries and we are making excellent progress toward determining if planets like ours are the exception or the rule.”

Early on in the mission, the Kepler telescope found mostly large, gaseous giants in that orbited very closely to their stars. Because of their size these “hot Jupiters,” as they were called are easier to find. As the mission continues, Kepler will be able to observe planets closer to Earth’s size orbiting in the goldilocks zones around stars like the sun.

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