If ancient extraterrestrial explorers ever traipsed through Earth's cosmic neighborhood, it's possible they left behind some interstellar litter in their wake. Think of it like the loose hubcaps on ...

Life on Earth can be found in the strangest of places, from tens of thousands of metres in the sea to a bubbling tar pit in Trinidad. But scientists have suggested that life – alien life – could be ...

There might be alien life on a nearby moon, scientists say - Saturn’s companion Enceladus has long been a particularly promising place to find aliens – and now researchers say that extraterrestrial li ...