Class M Planet Discovered

Maybe. Well, not really. But it could be ....

NASA's Kepler mission has confirmed its first planet in the "habitable zone," the region around a star where liquid water could exist on a planet's surface. Kepler also has discovered more than 1,000 new planet candidates, nearly doubling its previously known count. Ten of these candidates are near-Earth-size and orbit in the habitable zone of their host star. Candidates require follow-up observations to verify they are actual planets.

The newly confirmed planet, Kepler-22b, is the smallest yet found to orbit in the middle of the habitable zone of a star similar to our sun. The planet is about 2.4 times the radius of Earth. Scientists don't yet know if Kepler-22b has a predominantly rocky, gaseous or liquid composition, but its discovery is a step closer to finding Earth-like planets.

Details here.

Tags

More like this

(Based on actual events.) Younger offspring (age 4.5): (singing softly to self while arranging a line of nine grapes on breakfast plate) Nine planets, fine planets, in our solar system. Nine planets, fine planets, go ahead and list 'em ... *
Kepler has discovered 11 new "solar systems" with 26 confirmed planets among them. They:
It seems the IAU ruling on what counts as a planet has stirred a little controversy in the Free-Ride home.
Dr. Free-Ride: (to younger offspring) Could you teach me all the words to your song about the planets. Younger offspring: It's secret.