About 4.5 million years ago, a great cosmic dog kicked past our Solar System – and its effects may still be seen today.

A different study by scientist Matthew Hopkins at the University of Oxford and colleagues, used a model that focused on the ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up to 153,000 miles per hour.

A small, icy traveler from deep space has just threaded its way through the inner Solar System, offering a fleeting but ...

December is the month that fans of 3I/ATLAS have been waiting for as the interstellar comet makes its closest approach to ...

The space agency got a close look at the interstellar visitor over the past few months as it zipped by Mars and the sun ...

For the last month and change, you might've seen the headlines about the planetary alignment, or a planetary parade, going on in our solar system. And that's true. In January 2025, Venus, Mars, ...

Not much, unless we're talking about spacecraft. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For the last month and change, you might've seen ...