A mysterious radio signal detected nearly five decades ago and long speculated to be evidence of extraterrestrial life may finally have a natural explanation, according to new research. The so-called ...

Proxima Centauri b is the closest known exoplanet that could be in the habitable zone of its star. Therefore, it has garnered a lot of attention, including several missions designed to visit it and ...

Outside commentators seized on the fact that the signal appeared to line up with the direction of Proxima Centauri and had characteristics one might expect from advanced technology, including a narrow ...