What is all of space and time, and everything in it. It’s everything ever!

What is a meteoroid that lands on the surface of a planet.

What are rocks floating around in space. Some are the size of a pick-up truck. Others are hundreds of miles across.

It’s not a year, or an amount of time at all. It’s the distance light travels in one year. It’s the same as 5,878,499,810,000 miles (or 9,460,538,400,000,000 meters). When things are very far away, it’s easier to talk about their distance i

What is the gases held by gravity around Earth and around other planets. It can also be used to talk about gases around stars.

What is a large body in outer space that circles around the sun or another star.

What is a part of Earth’s atmosphere that absorbs lots of the sun’s ultraviolet radiation. It is made of a gas called ozone, which is a molecule of three oxygen atoms.

What is a place in space where matter and light cannot escape if they fall in.

What is a force that pulls matter together.

What is a natural object that travels around a bigger natural object.

What is a large, bowl-shaped dent in the ground. They can be caused by an explosion or the impact of a meteorite.

What is a little chunk of rock in space smaller than a pick up truck. If it were bigger, it would be an asteroid.

What is a group of stars in the sky. They're often named after an animal, object, or person. The stars form certain patterns based on where you are.