Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping argues as much, and his “Eschatian Hypothesis” reimagines the way ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

A dedicated scan for signs of radio-transmitting technology in interstellar comet 3I/ATLAS has come back with absolute ...

Scientists used the 100-metre Green Bank Telescope to look for alien signals but detected no radio signals from 3I/ATLAS.

We've all grown up dreaming of aliens landing on the Earth or laser beaming across the sky; well, either way, it's sci-fi and dramatic. But what if th.

Scientists used the world's largest single-dish radio telescope to scan comet 3I/ATLAS for signs of extraterrestrial life, but found no artificial radio emissions.