From phone boxes and flux capacitors to black holes and hot tubs, sci-fi has created plenty of ways to explore the fourth dimension. When you purchase through links on our site, we may earn an ...

A Pentagon release of new UFO footage has revived the question of whether aliens could realistically travel to Earth.

NASA's Artemis II mission to slingshot four astronauts around the moon - and subsequently travel the furthest mankind has ever been from the Earth - has inspired a renewed interest in space travel ...