The James Webb Space Telescope identified the lights in the distant planet’s atmosphere, which could not be seen by earlier ...

For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

As Firefly Aerospace prepared to close out a two-week mission on the moon, its lander had one final gift to beam home: the ...

The solar system has a new “moon king” and it’s Saturn. The planet has snatched the title from Jupiter after scientists discovered that 128 new moons are orbiting Saturn, taking its total tally to 274 ...

All of the newly discovered moons are classified as "irregular moons," which are objects captured by Saturn early in the solar system's history. Listen to Story These moons are small, measuring only a ...

Astronomers announced the discovery of 128 new moons orbiting Saturn on Tuesday. The moons are only a few kilometers in size. Saturn has more moons than any planet in our solar system. Astronomers ...

Charon, Pluto’s largest moon, has a tidally locked orbit. This means that if our crew can see Charon from where they landed, it will never move across the sky. Charon is also much closer to ...

Uranus and Neptune have 28 and 16 known moons, respectively. Despite not technically being a planet anymore, Pluto has five moons. The 128 new Saturnian satellites are all considered irregular moons.