Show:
Planets
Other bodies
Sun
Distances
Cosmic Address
100
The name of Mercury, Venus, Earth, and Mars.
What is the rocky inner planets?
100
Also called "dirty snowballs," they are made of ice, gas and dust, and they orbit the Sun.
What are comets?
100
The closest star to Earth.
What is the Sun?
100
The distance that an AU represents.
What is 93 million miles?
100
This is where we live, the only planet that has a breathable atmosphere and other elements that support human life.
What is Earth?
200
The name for Jupiter, Saturn, Uranus, and Neptune.
What is the gas giants?
200
Made of metallic rock, found mostly in a belt between Mars and Jupiter.
What are asteroids?
200
The name of the reaction that is the source of the Sun's energy.
What is fusion?
200
Also known as the distance from Earth to the Sun.
What is an AU?
200
Consists of the Sun, 8 planets, dwarf planets, asteroids, comets, meteors, etc.
What is the solar system?
300
The dwarf planet that was known as a planet until 2006.
What is Pluto?
300
A chunk of an asteroid.
What is a meteor?
300
The name of the part of the Sun where hydrogen molecules join to become helium.
What is the core?
300
The unit we use to measure distances outside of the solar system.
What is a light year?
300
The name of the place we are that is made of a spiral shaped cluster of billions of stars.
What is the Milky Way galaxy?
400
The largest planet in the solar system.
What is Jupiter?
400
The name of a meteor once it hits the Earth.
What is a meteorite?
400
The reason why the Sun's gravity is the strongest in the solar system.
What the Sun's incredibly large mass?
400
How the distances of the inner planets compare to those of the gas giants.
What is much closer to each other and the Sun?
400
Everything. All of space and all of the matter and energy it contains.
What is the universe?
500
The approximate number of rings Saturn has.
What is thousands?
500
The two places where most comets are found.
What are the Kuiper Belt and the Oort Cloud?
500
The part of the Sun that is only visible during an eclipse.
What is the corona?
500
The number of times bigger that a light year is than an AU.
What is 63,000?
500
The approximate number of galaxies in the universe.
What is 100 billion?