There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

Scientists at MIT and elsewhere have discovered extremely rare remnants of "proto Earth," which formed about 4.5 billion ...

In a frigid corner of the solar system, Saturn’s moon Titan has surprised scientists with an unexpected chemical twist.

Lying between Mars and Jupiter is a massive ring of rock debris—the asteroid belt. Now thin, it’s fading away gradually.

Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest observations will be made.

With the recent discovery of traces of what may or may not be or have been life on Mars, eyes are turning to another world in ...

Anyone who studies planetary formation would relish the opportunity to get a close-up look at an interstellar object. Sending ...