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

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 ...

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...