Earth" brought a shipload of xenomorphs and other space horrors, but hybrids may be the biggest mystery of the show so far.

Danny Lavelle attended a UFO bootcamp in Arizona to meet people who believe they’ve seen aliens (Picture: /Science Photo ...

While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of ...

Megaprojects' like huge solar farms could be visible from great distances.

This Earth Day, we reflect on our home planet and look at Earth from space through history.

The enigmatic orb has undergone extensive examination and DNA testing, enabling scientists to reveal its true origins ...