Cressida (moon)

Imagine a giant planet named Uranus, so big it would take over 60 Earths to fill it up! Well, Cressida is one of its many tiny moons. It's not round and smooth like our Moon; it's more like a lumpy potato or a giant, misshapen rock floating in space.

It's super small, only about 82 kilometers (51 miles) across. That's not even as wide as a big city! It zooms around Uranus really fast, making a full trip in less than a day.

Cressida lives in a very special neighborhood called the Uranian system. Uranus is the seventh planet from the Sun, and it's a very cold place because it's so far away. Cressida orbits Uranus at a distance of about 48,000 miles.

That's like flying from New York to Los Angeles and back almost 20 times! It's part of a group of moons that are all pretty small and irregular in shape, like a family of space rocks.

Scientists think Cressida is made of dark, rocky material. It's not shiny and bright like some other moons. Because it's so dark, it's very hard to see. It's like trying to spot a dark pebble on a dark road at night! It doesn't have any atmosphere, which is the blanket of air that Earth has. So, it's a very bare and rocky little world.

Cressida is a super-fast traveler! It orbits Uranus in just about 12 hours and 25 minutes. That means it completes a whole trip around its giant planet in less time than it takes you to go to school and back! It's also moving very quickly as it orbits, traveling at about 15.5 miles per second. That's faster than a race car!