Hubble doesn't just look at distant nebula and galaxies, but has also observed celestial bodies and events in our own solar ...

The best opportunity to potentially see all seven planets is coming up on Feb. 28 around 6:10 p.m. ET, according to Shanahan.

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse.

New planets are now being discovered outside our Solar System on a regular basis, and these strange new worlds are forcing scientists to rewrite the history of our own Solar System. Far from a ...

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and ...

Feb. 23 (UPI) --A shell of icy objects at the edge of the solar system known as the Oort cloud has a pair of spiral arms that resemble a miniature galaxy, new research suggests. Until now ...