Even if intelligent aliens exist they may never achieve space travel ...

Even if intelligent alien species exist, the physical constraints posed by some planets may prevent them from traveling to space, a new study says. Read More

If Aliens Exist,They May Come to Get Us, Stephen Hawking Says | Space

If intelligent alien life forms do exist, they might not be the friendly cosmic neighbors the people of Earth are looking for, famed British scientist Stephen Hawking says in a new television ... Read More

Most People Believe Intelligent Aliens Exist, Poll Says

So if there are smart aliens, why haven't they contacted us? Forty-two percent of Americans said it's because "human technology is not advanced enough for us to communicate with extraterrestrial ... Read More

If intelligent aliens exist, why haven’t we seen them?

But this means if whatever civilization we’re looking for isn’t actively emitting signals for communication, we probably wouldn’t see them. Humans are getting better at detecting signals from space, ... Read More

Aliens probably exist – but there’s a terrifying reason why ... - MSN

This summer, director Fede Alvarez ­returns the notorious Alien franchise to its monster-movie roots, and feeds yet another batch of hapless young space colonists to a nest of “xenomorphs ... Read More

Even if intelligent aliens exist they may never achieve space travel ...

Even if intelligent alien species exist, the physical constraints posed by some planets may prevent them from traveling to space, a new study says. The research article in the Journal of the ... Read More

Are we alone? Intelligent aliens may be rare, new study suggests - Yahoo

A new interpretation of the famous Drake equation finds little reason to be optimistic about the search for extraterrestrial intelligence. Read More