Alien solar systems with multiple planets appear to be common in our galaxy, but most of them are quite different than our own, a new study finds. NASA's Kepler Space Telescope detected 1,235 alien ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of planets Sarah Knapton is the Science Editor of The Telegraph and has covered ...

Recent research suggests that our solar system could already be hosting alien probes, potentially observing us from a distance. This idea aligns with a 2023 statement from a Pentagon UFO chief who ...

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

Who hasn't looked into the sky and wondered if there's life out there, somewhere, looking back at us? Is it possible there's alien life closer to home — within the bounds of our solar system? The ...

Astronomers have discovered an alien solar system in which six planets are orbiting a sunlike star, with five of the newfound worlds in close-knit configuration. Few stars have been observed with ...

Astronomers have trained telescopes on planets outside our solar system - and light years away from us. But there might be a planet from an alien solar system a bit closer to home. The mysterious ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...

A huge object, possibly as big as Manhattan, has entered our Solar System and it might be more than just a rock. Some scientists now say it could be an alien spacecraft, with plans to attack Earth in ...

Add Yahoo as a preferred source to see more of our stories on Google. A view of HOPS-315, a baby star some 1,400 light-years from Earth where astronomers have observed evidence for the earliest stages ...