A fictional theory created by H. P. Lovecraft ended up changing 2001: A Space Odyssey - and the world.

When a hunk of ice from another star system hurtles through our cosmic neighborhood, astronomers pay attention. When that ...

Add Yahoo as a preferred source to see more of our stories on Google. A NASA astronaut recently sent the internet into a frenzy when he posted an alien-looking photo on social media. The photo posted ...

Many video games are full of alien horrors, but these are the best games that let players turn the tables and become the terror from outer space. When you purchase ...

Bring up aliens and a lot of people will scoff. But not everyone is laughing. Around the turn of the century, 3.8 million people banded together in a real-time search for aliens — with screensavers.

One day, probably far off in the very distant future, if astronomers are correct in their assumptions about the vastness of space, Earth will be visited by intelligent beings from another planet.

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