The quest to find life elsewhere in the universe is biggest in modern science. An ice covered ocean on a small world orbiting Jupiter may hold the answers to this fundamental question. Archive footage appears courtesy of Footagevault.

The quest to find life elsewhere in the universe is biggest in modern science. An ice covered ocean on a small world orbiting Jupiter may hold the answers to this fundamental question. Archive footage appears courtesy of Footagevault.

Named after the Greek gods of fear and dread, Mars's two moons remained undiscovered until the late 19th century. Since the start of the Space Race they've been minor supporting characters in our quest to understand the Red Planet, but an ambitious new mission may be about to move them centre...