Earth may not be the only world with vast bodies of liquid water, and some distant planets could contain far more water than our own. Depending on a planet’s mass, temperature and composition, its ...

Using the same planet-hunting techniques as Earth astronomers, would inhabitants of a planet hundreds of light-years away be able to detect Earth? Or would the gas giants overpower their observations?

On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be unexplained flying objects. These file dumps were the culmination of a ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of a watery exoplanet with a red dwarf sun overhead. A new study suggests that the exoplanet GJ 3378b, which ...

From the Star Wars spin-off The Mandalorian to the classic series Star Trek: The Next Generation, these are the best sci-fi ...

The universe is vast and teeming with stars – but if intelligent life exists, it may not be able to visit Earth. By Kai James / The Conversation Published May 27, 2026 8:00 AM EDT This article was ...