Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have ...

One of them is about 4.2 light years away - more than a whopping 24 trillion miles from Earth! Find out more here.

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known ...

Life on Earth is a precious thing, especially given what astronomers know about the visible universe. Although researchers ...

Out of the 6,000 known exoplanets, it's these rocky worlds that are most worthy of attention in the search for life beyond ...

By Will Dunham WASHINGTON, March 16 (Reuters) - Astronomers have spotted a planet orbiting a star in our neighborhood of the ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...

'As the number of exoplanets we've discovered increases, the question about life existing somewhere other than the Earth ...

A former NASA developer has analyzed 1950 photographic plates showing nine unexplained objects in Earth's orbit, years before ...