Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

A surprising new theory claims Earth’s building blocks were supernova ice, not stardust. This could change everything.

For only the second time ever, a collision between two asteroids has been observed around an alien star not too far beyond ...

Astronomers using NASA's Hubble Space Telescope have imaged the largest protoplanetary disk ever observed circling a young ...

It is a rare occurrence indeed for a theory to be turned upside down by the cold accuracy of observation, until the Hubble ...

The existence of the body 3I/ATLAS increasingly raises doubts not only among researchers, but also among people who are ...

When you look up at the night sky, planets seem calm and fixed. But a new study shows that nearby planetary systems can be ...

"Hubble has given us a front row seat to the chaotic processes that are shaping disks as they build new planets — processes ...

The discovery is the first direct observational confirmation of a theory for how young stars feed on, and then explosively ...

We are now beginning to better understand exoplanets as against merely discovering them. These are the exotic worlds that ...

Understanding how the Milky Way formed means looking far beyond the bright spiral you see in the night sky. A new study led ...