Planets
Stars
Galaxies
100

What's the smallest planet?

Mercury

100

True or False? Sirius B is the closest star to earth.

False, the sun is the closest star to earth.

100
Which galaxy do we currently live in?

The Milky Way.

200

How many planets are there?

8

200
How was the sun formed?

The sun was formed by a solar nebula 4.6 billion years ago.

200

What is the name of our neighboring galaxy?

The Andromeda galaxy.

300

What are asteroid belts?

A certain area populated by many asteroids, meteoroids and smaller planets.

300

When was earth formed? Round to the first decimal place value.

Earth was created 4.5 billion years ago.
300

What is the Andromeda galaxy type?

The Andromeda galaxy is a spiral galaxy.

400

How many planets does Venus have?

0, Venus has NO moons.
400

What is the closest star to the sun.

Proxima Centauri is the closest star to earth, coming in at 4.2 light years away. It's a red dwarf and is found inside Alpha Centauri.

400

What is in the center of the Milky Way.

Inside the depths of our galaxy, lies a supermassive blackhole called Sagittarius A*.

500

Why is Uranus slightly tilted?

Uranus's iconic look was due to a collision of a object---twice the mass of earth---nearly 4 billion years ago.

500

What are the most massive types of stars called?

O-types stars are the catalog of that is based on the most massive (in size and weight) in the universe.

500

What is the Andromeda galaxy's scientific name?

M31 is the term that most astronomers use to describe the Andromeda galaxy.

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