Picture of the Day: A (Possibly) Habitable Planet

607691main_Kepler22bArtwork_946-710.jpg

NASA's Kepler mission has identified 10 possible Earth-size planets in habitable zones around stars (the region where liquid water could exist), and yesterday it confirmed that one of those, Kepler-22b, is indeed a planet.

Kepler-22b is the smallest planet yet found in another star's habitable zone, but its radius is still 2.4 times the size that of Earth's. It is unknown whether the planet is primarily rocky, gaseous, or liquid. The planet's star belongs to the same class as our sun -- G-type -- but it is slightly smaller and cooler. Above, an artist's idea of what Kepler-22b might look like, some 600 light years from Earth.

Below, recent Pictures of the Day:

Image: NASA.

Presented by

Rebecca J. Rosen is a senior editor at The Atlantic, where she oversees the Business Channel. She was previously an associate editor at The Wilson Quarterly.

Would You Live in a Treehouse?

A treehouse can be an ideal office space, vacation rental, and way of reconnecting with your youth.

Join the Discussion

After you comment, click Post. If you’re not already logged in you will be asked to log in or register.

blog comments powered by Disqus

Video

Would You Live in a Treehouse?

A treehouse can be an ideal office space, vacation rental, and way of reconnecting with your youth.

Video

Pittsburgh: 'Better Than You Thought'

How Steel City became a bikeable, walkable paradise

Video

A Four-Dimensional Tour of Boston

In this groundbreaking video, time moves at multiple speeds within a single frame.

Video

Who Made Pop Music So Repetitive? You Did.

If pop music is too homogenous, that's because listeners want it that way.

More in Technology

Just In