Big Bang Theory
When did the Big Bang happen?
13.7 BYA
What is a solar system?
The sun, planets, and all the other objects that revolve around the sun.
What is the Universe?
All galaxies, stars, planets, matter, energy and time.
What does the solar system revolve around?
Sun
What is an asteroid?
A rocky celestial body that orbits the sun.
What happened right after the Big Bang?
Hot and dense universe
What is the milky way?
Our galaxy that contains our solar system.
What is a black hole?
An area in space where the gravity is so strong that object cannot escape its pull.
What is a planet?
A large, round celestial body orbiting a star.
What is a comet?
A rock and ice celestial body that orbits the Sun.
When was the Earth formed?
4.6 BYA
What is a Galaxy?
A collection of stars and their solar systems bound together by gravity.
What is cosmology?
The branch of science that studies the beginning of the universe.
What is a dwarf planet?
An object resembling a small planet but lacking criteria to be classified as a planet.
What is a meteor?
A rocky object that has entered Earths atmosphere.
When did they find the proof behind the Big Bang Theory?
1964
How long is a light year?
5.9 trillion miles
What is Celestial body?
A natural object in space.
What is Orbit?
The path an object takes around a star or planet.
What is Astronomy?
A branch of science that studies celestial objects, outer space, and the universe.
What is the proof behind the Big Bang Theory?
Background Radiation
A large cloud of dust and gas in space.
What is supernova?
A massive explosion when a gigantic star collapses on itself.
Where does a planet get a round shape from?
Gravity causes the planets to be round.
What is a Satellite?
A natural or artificial body that revolves around a planet.