Interstellar comet 3I/ATLAS dramatically brightened after passing the Sun, with Harvard astrophysicist Avi Loeb warning it ...

A small asteroid or comet is believed to be the first confirmed "interstellar object" to have entered our solar system from somewhere else in the galaxy. Moving between stars and occasionally passing ...

The mysterious space rock that passed through our solar system grew significantly brighter as it left, according to scientists. Researchers say Comet 3I/ATLAS, suggested to be a hostile alien ...

A comet from another solar system has given rise to reports that it is in fact an alien spaceship. The comet – named 3I/ATLAS – was discovered this summer and led to excitement because it appears to ...

A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer. The enormous interstellar object, now officially dubbed 3I/ATLAS, is already ...

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 ...

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 ...

Fleets of robotic space probes from alien civilisations could already have arrived in our solar system, a mathematical study has found. Van Allen probes · Yahoo News. Fleets of robotic space probes ...

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 ...

A skyscraper-sized space rock which floated into our solar system has withstood the intense heat of the sun because it is coated in a special crust, research suggests. The object, known as 'Oumuamua', ...