Scientists have been searching for radio signals from hypothetical alien civilizations using radio telescopes for decades.

Astronomers have recently identified a star system, KIC 8462852, exhibiting unusual behavior. The light from this star system is dimming in a way that defies natural explanations, sparking a wave of ...

If you have a favorite planet or star, you're in good company. Astronomers who devote their lives to the study of peculiar outer space objects are all too happy to gush about the ones they like best.