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

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

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

Uranus and Neptune have been called the “ice giants” for decades. But in new research, that nickname might be more a misnomer ...

As far as we know Neptune is the furthest full-size planet in our Solar System, orbiting the Sun some 2.69 billion miles away ...

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

Researchers are studying eccentric warm Jupiters, giant exoplanets that follow odd, elongated orbits unlike anything in our solar system.

We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these ...

The interstellar object 3I/ATLAS has gathered significant scientific attention, and soon it will reach its closest point to ...

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

New research from Rice University suggests that the giant planet Jupiter reshaped the early solar system in dramatic ways, ...