When an interstellar visitor slices through the solar system, astronomers usually have to make do with a fleeting, side-on ...

The most useful times in the life of a comet are usually the ones that come after the close pass, when the light has cleared up, the geometry is better and the physics is more prone to analysis into ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

A group of researchers say it's time for academia to get serious about studying UFOs. The movement, championed by the Society for UAP Studies, is wrapping up an international conference aimed at ...

The Olympic gymnast confirmed to PEOPLE exclusively last month that she underwent the cosmetic procedure and explained "openly" why she chose to get it done Biles has since been transparent about her ...

With next-generation telescopes, tiny space probes, and more, scientists aim to search for life beyond our solar system—and make contact. Propelled to a fifth the speed of light by a laser beam more ...