Discovered: 219 new planets, 10 the same size and temperature as earth
'It’s like finding what we thought was a single species of animal is really two different things'
Astronomers on Monday added 219 candidates to the growing list of planets beyond the solar system, 10 of which may be about the same size and temperature as Earth, boosting the chances for life. Scientists found the planet candidates in a final batch of NASA's Kepler Space Telescope observations of 200,000 sample stars in the constellation Cygnus. The candidates include 10 newly discovered rocky worlds that are properly distanced from their parent stars for water, if it exists, to pool on their surfaces. Scientists believe liquid water is a key ingredient for life. “An important question for us is, ‘Are we alone?'" Kepler program scientist Mario Perez said in a conference call with reporters. “Maybe Kepler today is telling us indirectly ... that we are not alone.” The National Aeronautics and Space Administration launched the Kepler telescope in 2009 to learn if Earth-like planets are common or rare. With the final analysis of Kepler data in hand, scientists said they will now work ...
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