The solar system is portrayed as a dynamic, gossip-fueled family, with each planet offering snide comments about one another, ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Predictions are uncertain, but the solar system may be pushed farther from the galactic core or even ejected entirely from ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

In the solar system, Jovian planets are located farther from the sun than terrestrial planets, and are therefore cooler. Scientists have found more than 100 Jovian planets around other stars.

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

But a new study indicates that such rings, if created, could remain stable for a million years, even while being gravitationally pulled by other solar system objects. The findings deepen the ...