In honor of the live-action 'Lilo & Stitch', we look back at 12 extra-terrestrials who came in peace. Aliens tend to fall ...

The space aliens haven't arrived, and they haven't probed anybody—but in our noisy modern world, these ideas might seem ...

Could Earth’s top jungle predator survive on a planet with two suns? In this wild sci-fi meets science episode, we explore ...

These are the best open-world space games with first-person exploration for immersive sci-fi adventures, ship piloting, and planetary discovery.

They orbit with Venus, but they’re headed our way. A newly modeled population of stealthy asteroids could pose a collision risk to Earth.