NASA Solar System Quiz

Why is our planetary system called 'the solar system'?

• Because it has the most planets.

• Because it is the largest system in the galaxy.

• Because it is the only system with a star.

• Because it is related to the Latin word for Sun, 'solis'.

How fast does our solar system orbit the center of the Milky Way galaxy?

• 1,000,000 mph

• 230,000 mph

• 515,000 mph

• 829,000 mph

Which is the hottest planet in our solar system?

• Jupiter

• Mars

• Venus

• Mercury

How many Earths could fit inside Jupiter if it were a hollow shell?

• 10,000

• 1,000

• 500

• 100

Which planets in our solar system have no moons?

• Mercury and Venus

• Uranus and Neptune

• Earth and Mars

• Jupiter and Saturn

What is the Kuiper Belt?

• The boundary of the Sun's gravitational influence.

• A ring of icy bodies past Neptune's orbit.

• A region of space with no objects.

• A collection of stars near the Sun.

What is the Oort Cloud made of?

• Gas and dust

• Icy pieces of space debris

• Stars and planets

• Solar wind particles

Which NASA spacecraft have crossed the termination shock?

• Curiosity and Opportunity

• Voyager 1 and Voyager 2

• New Horizons and Voyager 1

• Pioneer 10 and Pioneer 11

How many moons does Jupiter have?

• 16

• 28

• 95

• 146

What caused the formation of our solar system?

• A collision with another galaxy

• A black hole

• A nearby exploding star, called a supernova

• The Big Bang