The mysterious 3I/ATLAS comet is hurtling towards Earth and is set to make its closest approach on Friday, December 19, with ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

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 ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not ...

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