A nearby Sun-like star hosts four Earth-sized planets
Any life there would get pelted by asteroids and comets, though.
The search for a habitable second Earth
We’ve never had a better chance of finding extraterrestrial life -- if it exists.
'EVE Online' is crowdsourcing the search for real exoplanets
Seek out new life and new civilizations through a mini-game called "Project Discovery."
Hubble study finds two potentially habitable exoplanets
A pair of nearby planets offer rocky surfaces and dense atmospheres.
NASA's resurrected telescope seeks wandering planets
Kepler will use "gravitational lensing" to spot Milky Way exoplanets.
NASA finds 'super-Earth' with an atmosphere it can analyse
But don't expect to find life there.
NASA space telescope discovers Earth's closest rocky neighbor
NASA's Spitzer telescope confirmed the discovery of HD 219134b just 21 light-years away
NASA's new telescopes could spot alien life within 20 years
Convinced that there's got to be life on other planets? You're not alone in the universe -- in fac...
Alt-Week 12.7.13: Wormhole short-cuts, watery planets and history as seen by Google Books
Alt-week takes a look at the best science and alternative tech stories from the last seven days....