Tiny interstellar visitors from other star systems are increasingly entering our solar system, with the latest, 3I/ATLAS, ...

Sometime in 2029, the European Space Agency is scheduled to launch its Comet Interceptor Mission. The Interceptor will wait for a long-period comet to arrive in the inner solar system then set off on ...

A newly discovered interstellar comet is hurtling around us, only the third interloper object to be observed in our solar system. It is not expected to pose an impact risk to Earth, but telescopes ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Travelling between the stars has been a dream of humanity for ...

It's probably a comet, but it might be some sort of ancient alien spacecraft or probe. What's for sure is that the mystery surrounding an object known as 3I/ATLAS is becoming both more and ...

There's something orbiting the sun, way, way beyond the distant realm of Pluto. A team of astronomers recently spotted the farthest-known object in the solar system using a telescope atop Hawaii's ...