The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

The comet originated from outside our solar system and poses no danger to our planet. NASA officials have rejected theories that the object could be an alien spaceship. While not visible to the naked ...

Earth is dotted with humongous, human-made structures that, to an alien eye, may be tell-tale signs of intelligent goings-on.

The commercial space economy has shifted from a story about government contracts to one about private revenue. Satellite ...

There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.

WASHINGTON (Reuters) - After investigating the nature of a mysterious and apparently cigar-shaped object called 'Oumuamua spotted in 2017 speeding through our solar system, astronomers remain ...