S/2016 J 3: Jupiter's Tiny Friend!

Imagine Jupiter, the biggest planet in our solar system, like a giant beach ball! Now, imagine S/2016 J 3 as a tiny little pebble rolling around it. This moon is super, super small, only about 1 kilometer across.

That's shorter than a big skyscraper! It's so tiny that it's hard to see, even with powerful telescopes. It's like trying to find a single grain of sand on a huge beach.

This little moon is one of many that dance around the giant planet Jupiter.

S/2016 J 3 lives far, far away from Earth, orbiting the giant planet Jupiter. Jupiter is so big it could fit all the other planets inside it! This tiny moon is part of a big family of moons that circle Jupiter.

It travels on a path, or orbit, that takes it around Jupiter. Because Jupiter is so far from the Sun, it takes a very long time for Jupiter to go around the Sun once. This means S/2016 J 3 also has a very long 'year' as it goes around Jupiter.

Scientists think that S/2016 J 3 is made of rock. It's not like Earth, which has oceans and air. This moon is probably just a big chunk of space rock, maybe with some ice mixed in.

It doesn't have any air to breathe, and it's very cold there! It's like a small asteroid that got captured by Jupiter's strong gravity and decided to stay as a moon. It's a simple, rocky world with no volcanoes or mountains like we see on Earth.

Even though S/2016 J 3 is small, it moves pretty fast around Jupiter! It zips around the giant planet in just about 1 Earth day. That's super quick compared to how long it takes Earth to go around the Sun (which is a whole year!).

It's like a speedy race car going around a giant track. Because it's so small and far away, it's tricky to study, but scientists are always looking for new things in space!