While their experiences do not tell us what an alien would eat, they do show us that leaving Earth changes the way we eat.
Aliens exist – they just haven't visited Earth, a NASA veteran has claimed. Dr Gentry Lee has worked at the US space agency since 1968, when he first got involved with the Viking mission to Mars. He ...
Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results