Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

A new study published in the journal Astrophysical has outlined a novel method that could be used to detect advanced alien civilizations remotely. The premise is to look for signs of nuclear fusion on ...

Using an array of powerful radio telescopes high in the desert mountains of northern Chile, astronomers have confirmed the first discovery of alien exomoons. In our own solar system, there are over ...

Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home. Researchers from the Search for ExtraTerrestrial ...

A groundbreaking new study, published in The Astrophysical Journal Lettersand conducted by researchers at Penn State University and NASA’s Jet Propulsion Laboratory (JPL), reveals that Earth may be ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...