It seems that the frequency of planets able to support life is roughly one percent. In other words, a billion or more such worlds exist in our galaxy alone. That's a lot of acreage, and it takes industrial-strength credulity to believe it's all bleakly barren.

By: Elizabeth Howell Published: 02/08/2013 08:06 PM EST on SPACE.com Intelligent alien life is likely relatively rare throughout our Milky Way gala...

The question of whether extraterrestrial life exists (and in particular "intelligent" ET life) is arguably one of the most intriguing questions today. The discovery of ET life would constitute a revolution rivaling the Copernican revolution in magnitude. Here is a brief status report.

By: Elizabeth Howell, SPACE.com Contributor Published: 11/02/2012 11:03 AM EDT on SPACE.com A team of SETI astronomers have proved it's possible t...

Despite any inclination to believe yourself among the brightest bulbs around, new research indicates that even when the universe was considerably younger, there were heavy elements enough to spawn planets that could... spawn life.

By: SPACE.com Staff Published: 05/25/2012 10:14 AM EDT on SPACE.com Despite what the movies tell us, any aliens that visit Earth probably won't ...

By: Jeremy Hsu, InnovationNewsDaily Senior Writer Published: 05/21/2012 05:34 PM EDT on InnovationNewsDaily Star Trek's bold vision of the stars...

With so many places for life to exist, we may be closer to finding E.T. than ever before. Imagine what we'd glean from that encounter. How much more we'll come to know -- not only about life in the cosmos but also about ourselves.

The launch of SETI Live opens the door for anyone to help search for intelligent life on other planets. For the first time ever, data being received by the Allen Telescope Array in Hat Creek, CA will be made public so citizen scientists can scan it for potential signals.