K2-18b is the "best candidate" to host alien life outside the solar system.
Astronomers think aliens from other galaxies could be trying to communicate with us so Chinese scientists built a huge telescope to find out.
‘I really don't care whether anyone thinks I’m delusional.’
A fascinating new book by an astrobiologist sheds light on the search for extraterrestrial life.
Myriame Belmyr runs alien abductee organisation CERO-France.
Scientists don't love the idea of someone speculating they may have found an alien civilization.
The president of the United States normally has a lot of responsibility, but if aliens arrive, he or she could end up deciding the literal fate of humanity.
Arecibo Observatory, the world's largest radio telescope and an alien hunter's best bet at finding extraterrestrial life, could lose its funding and shut down.