Green Bank Telescope rules out alien signals in interstellar comet 3I/ATLAS after rigorous scientific deep search.

Are aliens real? The question has animated conspiracy theories for decades and enthralled at least one former president of the United States. In a recent interview, Barack Obama became the first ...

Aliens exist - they just haven't visited Earth, NASA veteran Dr Gentry Lee has claimed.

For Bill Diamond, the president and chief executive of the Search for Extraterrestrial Intelligence Institute (Seti) in California, Obama’s beliefs are hardly radical. Seti is the world’s leading ...