Astronomers have recently detected a rogue planet entering our solar system, marking a rare event that has sparked ...

UW’s Institute for Data-intensive Research in Astrophysics and Cosmology, founded in 2016 with support from the Charles and ...

(Image credit: alexandarilich/Getty Images) Our solar system has been around for 4.6 billion years. While that sounds like a long time, it's just a blip in the 13.8 billion-year story of the universe.

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers determine the object’s size.

The comet, originating from beyond our solar system, continues to draw attention from astronomers worldwide as multiple Nasa ...

There are several candidates for the biggest star in the universe. One of them, VY Canis Majoris, is over 1,500 times the ...

The first was ‘Oumuamua, a small, cigar-shaped object that visited our solar system in 2017. Its true nature is still up for debate, though some experts believe it was a comet.

New Hubble data on the 3I/ATLAS interstellar comet points to it having a nucleus between 1,000 feet and 3.5 miles, speed at ...

None of this has improved my dimensia to the point that I can relate to the size of the solar system or the Milky Way, much less the universe. But one thing Fleisch reminded me of does help me get ...

A pair of planetary scientists simulated how our solar system might have evolved if it had a super-Earth orbiting where the asteroid belt is today. The results are enough to make you grateful that ...

But black holes are much rarer in the universe, and the chance of one traveling through the solar system even a single time is low — much less that it would collide with something.