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

Jupiter's rapid early growth dramatically reshaped our solar system, scientists now reveal. Its immense gravity acted as a ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

Astronomers have discovered seeds of rocky planets forming in the gas around the baby sunlike star providing *** peek into the start of our own solar system. The the thing that we've discovered is ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...