When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist having a Eureka moment, realising in a single dramatic instant that Earth is ...

Three decades of finding new worlds Exoplanet science has moved fast since the first confirmed discoveries in the 1990s.

For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what ...