Two respected astrophysicists have claimed that aliens may already have tried to contact the Earth. A pair of researchers said extraterrestrials are probably searching the heavens using the same ...

The question of whether or not we are alone in the universe has preoccupied scientists for decades, but efforts to find life beyond our planet have so far been unfruitful. Now experts are planning to ...

For decades we've been sending signals - both deliberate and accidental - into space, and listening out for alien civilisations' broadcasts. But what is the plan if one day we were to hear something?

Comet P67 became the most famous entity in the Kuiper belt after the Rosetta mission collected samples from its icy surface in 2014. Rosetta’s incredible findings showed organic molecules existed in ...

Vulcans, Daleks, Martians, Grays - our culture is pervaded by alien beings from distant worlds – some benevolent…most not so much. In our galaxy alone, there should be tens of billions of planets ...

Many leading scientists believe there’s a genuine possibility that the first evidence of extra-terrestrial life may soon be detected. First Contact: An Alien Encounter offers up an exploration of what ...