Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

“Our existence is probably not an evolutionary fluke,” says Jennifer Macalady, a study co-author and microbiology professor ...

A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...

Here’s our list of the best cinematic sci-fi romance stories to prove that love is the one thing we're capable of perceiving that transcends dimensions of time and space.