The unsettling logic behind a “last message” universe The idea that our first confirmed alien signal might be a civilization’s final broadcast is rooted less in pessimism than in probability. If ...

The search for extraterrestrial intelligence (SETI) has been ongoing since the 1960s, yet no confirmed signals from alien civilizations have ever been detected. A new study published in Astrophysical ...

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing through enormous volumes of data to look for peculiar signals. When you purchase ...

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 ...