For four decades, many SETI experiments have focused on finding sharp spikes in frequency but the new study says signals may not stay narrow as they travel away from their home system.

Radio silence has long puzzled those searching for extraterrestrial intelligence, but the answer might lie much closer to the ...

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. South Africa's MeerKAT ...

Astronomers studying a distant galaxy cluster stumbled upon ancient radio signals that might hold clues to the formation of the early universe. While studying the distant galaxy cluster known as ...

(CNN) — Scientists are trying to solve a decade-long mystery by determining the identity of anomalous signals detected from below ice in Antarctica. The strange radio waves emerged during a search for ...

Understanding how the universe transitioned from darkness to the emergence of stars marks a critical shift known as Cosmic Dawn. Yet, astronomers have struggled to unravel details about the first ...

A scientific paper was recently published on Cornell University's arXiv describing a radio burst that lasted for a mere 30 nanoseconds. Maybe that doesn't sound too exciting, except that the signal ...

Astronomers using South Africa’s MeerKAT radio telescope have confirmed a persistent hydroxyl gigamaser signal originating ...

Japan’s Super-Kamiokande detector, a massive underground neutrino observatory, has completed its most sensitive search yet ...