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

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that spawned ...

When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...

The Bushman Planetarium at Missouri Western State University will present a public double feature showing of "Secret of the ...

Many of us learned about the order of the planets in our Solar System through some mnemonic device. We were also taught to think that the Solar System is a fixed thing, but our grade school ...

Astronomers are abuzz with the discovery of a rogue planet, 2MASS J05325346+0919037, which is set to pass within 0.05 ...

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

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...