Reddish rocks discovered in the Sahara Desert four years ago have turned out to be older than almost anything known on Earth.

Are humans alone in the universe, or could intelligent alien civilizations exist somewhere beyond Earth? For more than 60 ...

A tiny particle caught outside the International Space Station and brought back to Earth in 2005 turned out to have an ...

Astronomers discover three supermassive black holes in galaxy J0148-4214, with two on a collision course, revealing secrets ...

Alien life may not need the kind of home humans instinctively search for. Some of the strangest possibilities begin once ...

The SETI Institute’s Artist-in-Residence program brings artists and scientists together to explore questions that neither group can answer alone. By encouraging creative experiments and teamwork, the ...

A MASSIVE new potential dwarf planet has been discovered for the first time – as the surprising reason for the find is ...

Earth already contains organisms that survive conditions humans could never endure. Alien life, if it exists, may force ...

In the new, seventh batch of classified documents released by the Pentagon, an account by a former officer at the Roswell ...

Researchers tested whether they could detect unusual radio signals coming from an interstellar object passing through our ...

Astronomers spotted three actively feeding supermassive black holes in a single young galaxy, two of them close enough to merge within a few hundred million years.

A new series of declassified Pentagon documents has brought the mysterious Roswell incident of 1947 back into focus. Among the materials is the testimony of a former US officer who claimed to have ...