What is a planet? (noun)
A body that moves around the sun.
What is an orbit? (verb)
An orbit is a regular, repeating path that one object in space takes around another.
What is a solar system? (noun)
The sun together with all the planets and other bodies that revolve around it.
What is an atmosphere? (noun)
The blanket of gases which surrounds a planet.
What is a galaxy? (noun)
A collection of stars and solar systems held together by gravity.
What is a universe? (noun)
All of space and time. Everything we can touch, feel, sense, measure or detect. It includes living things, planets, stars, galaxies, light, and time.
What is a comet? (noun)
A body of gas, ice and rock that orbits the sun.
What is a journey? (noun)
Traveling from one place to another, usually taking a long time.
What is data? (noun)
Facts, statistics, or information.
What is extraterrestrial? (adjective)
Existing outside the Earth.
What is debate? (verb)
To have a discussion or argument about something.
What is space? (noun)
The place outside the atmosphere of the Earth.
What is the Milky Way? (noun)
It is the galaxy that contains our Solar System.
