Tom Cruise has had a career as illustrious as it gets in Hollywood, but his sci-fi stint is fairly brief. Here's our ranking ...

A resurfaced NASA Curiosity rover photo has sparked fierce debate after viewers spotted a 'Jellyfish-Shaped UFO' standing on the Martian surface before vanishing seconds later.

The Alien franchise is full of iconic moments, but none of them are as beloved as this line from the series' first sequel.

The Department of War is investigating the claim that the Air Force is holding back two cellphone videos supposedly showing a ...

Watch the Terrestrial trailer starring Jermaine Fowler in Steve Pink’s new sci-fi comedy about friendship, ambition and ...

3I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some researchers suggest it could even be alien-made, drawing comparisons to probes ...