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Seti Aliens

Alien Hunters Scan Skies For E.T. Signals

Posted 02.12.2013 | Science

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

Some Big Questions May Be Best Answered by an Army of Citizen Scientists

Jill Tarter | Posted 05.19.2012 | Science
Jill Tarter

Admit it: there's been a night when you've looked up into a sky ablaze with stars and wondered whether there is any life beyond planet Earth.

Are We Alone?

Nick Sagan | Posted 05.12.2012 | Science
Nick Sagan

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.

They're Not Meat

Seth Shostak | Posted 03.28.2012 | Science
Seth Shostak

In a movie it's important to have aliens whose gestures and facial expressions can be "read" by humans. But come on! Are two eyes, four appendages and an upright posture really essential?