Space Things
Systems
Important Objects
Unknown
Unknown
100

A rocky, celestial body that orbits the Sun.

Meteor

100

Our galaxy that contains our solar system.

Milky Way

100

A rocky celestial body that orbits the Sun.

Asteroid

100

A natural object in space such as the sun, moons, planets, stars, asteroids, comets, meteors.

Celestial Body

100

The path an object takes around a star or planet.

Orbit

200

A rock and ice celestial body that orbits the Sun. When this nears the Sun, a dusty tail can be seen.

Comet

200

The sun, planets, and all the other objects that revolve around the sun.

Solar System

200

An area in space where the gravity is so strong that object cannot escape its pull.

Black Hole

200

A round ball of gas in space taking the form of a planet. These are gigantic.

Gas Giant

200

A branch of science that studies celestial objects, outer space, and the universe.

Astronomy

300

A large cloud of dust and gas in space.

Nebula

300

All galaxies, stars, planets, matter, energy and time.

Universe

300

A large, round celestial body orbiting a star. The round shape results from its gravity.

Planet

300

A small, rapidly moving meteor burning up on entering the earth's atmosphere.

Shooting Star

300

A natural or artificial body that revolves around a planet. The moon is considered one of these as is the International Space Station.

Satellite

400

A huge explosion when a massive star collapses on itself.

Supernova

400

A collection of stars and their solar systems bound together by gravity.

Galaxy

400

An object resembling a small planet but lacking criteria to be classified as a planet.

Dwarf Planet

400

A natural force that pulls two objetcs toward one another.

Gravity

400

The branch of science that studies the origin of the universe.

Cosmology

500

Multiple objects in space, unusually large, devouring suns, moons, and planets. These objects are so strong nothing in space can excape their pull.

Supermassive Black Holes

500

An infinite realm of being or potential being of which the universe is regarded as a part or instance.

Multiverse

500

A ball of hot gas that creates large amounts of energy through nuclear fusion where atoms join together. 

Star

500

Massive explosion 13.7 billion years ago that created the universe.

The Big Bang Theory

500

The distance light travels in one year which is 5.9 trillion miles. This is a measurement of distance and not time as 'year' indicates.

Light Year