Astronomers discover a brand-new class of exoplanet — the boiling…

NASA's Kepler mission has been spoiling us with planetary discoveries left and right as of late. Now, researchers using NASA's Hubble Space Telescope have discovered an entirely new class of planet — they call it a "waterworld," and it might be covered in broiling-hot ice. » 2/21/12 11:21am 2/21/12 11:21am

"Super Earth" Discovered Orbiting A Red Dwarf Star

Just 13 parsecs away, a planet astronomers are calling a "super Earth" is orbiting a dwarf star. Its radius is over twice that of Earth, and there's something very surprising in its core. » 12/17/09 7:30am 12/17/09 7:30am