Humanity has already sent five spacecraft on trajectories that will eventually carry them beyond the Solar System, demonstrating that technologically advanced civilisations can launch interstellar ...

The most crowded alien planetary system found yet possesses five worlds all orbiting a star at least 12 times closer than Earth does the sun, researchers say. Investigators discovered these exoplanets ...

A recent study has renewed discussion about whether advanced extraterrestrial civilisations could leave detectable technosignatures within our own Solar System, including in the asteroid belt. In the ...

Add Yahoo as a preferred source to see more of our stories on Google. It was initially thought to have formed between three and 10 billion years ago, but researchers have now found that it could be ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...

If you thrill at the discovery of new exoplanets, hold tight. A sextuplet alien solar system has been glimpsed in exquisite detail, revealing six planets of varying mass, five of which are packed ...

Alien life may be hiding much closer to home than science fiction would have us believe, according to a particle physicist and dark matter researcher Dr Sarah Alam Malik, who argues that Saturn's ...

Astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spacecraft. 3I/ATLAS was confirmed as the third known object to enter our solar system from interstellar ...

Harvard’s UFO-hunting astronomer Avi Loeb says interstellar object 3I/ATLAS still has strange, unresolved clues - from its near-perfect planetary-plane path to odd jets ...

A JUPITER-SIZED planet has been spotted in a large circular orbit around its parent star, in the most similar solar system to our own yet seen. Although Earth-sized planets are too small to be ...