Outside the Atmosphere

2. A bright, glowing ball of hot gas in space. Our sun is a star, and there are billions of stars in the universe.
6. A small rock or piece of metal that travels through space. When it enters Earth's atmosphere and burns up, it's called a meteor.
7. A massive system of stars, gas, dust, and dark matter held together by gravity. Our Milky Way is one of many galaxies in the universe.
9. The path that an object in space follows around another, like a planet orbiting the sun. It's like a cosmic race track.
10. An object that orbits a planet or star. Artificial satellites are used for communication, weather monitoring, and more.
12. Station A large spacecraft that orbits Earth and serves as a home and workplace for astronauts conducting research in space.
13. A planet that orbits a star outside our solar system. Scientists search for exoplanets to learn about other potential habitable worlds.
14. A vast cloud of gas and dust in space. Nebulas are often regions where new stars are born.
15. A celestial object made of ice, dust, and gas that orbits the sun. Comets have a bright tail when they get closer to the sun.

1. A vehicle designed for space travel. Spaceships are used to carry astronauts and equipment into space.
3. An instrument that magnifies and allows us to see distant objects in space, like stars, planets, and galaxies.
4. A group of stars that form a recognizable pattern in the night sky. People have named constellations for thousands of years.
5. A powerful vehicle that uses engines to propel itself into space. Rockets are how we send astronauts and satellites into orbit.
8. A person who travels in space. Astronauts wear special suits and helmets to breathe and stay safe in space.
11. Hole A region in space where gravity is so strong that nothing, not even light, can escape from it. Black holes are incredibly mysterious.