Space Exploration
Planets
Stars & Galaxies
Moon & Earth
Mystery
100

How many times has the United States gone to space?

A. 184

B. 173

C. 201

A. 184

100

Which planet is known as the red planet?

A. Neptune

B. Jupiter

C. Mars

C. Mars

100

What is the name of the star at the center of our solar system?

Sun

100

How many moons does Earth have? 

1

100

What force keeps the planets orbiting in space?

Gravity

200
What vehicle carries astronauts from Earth into space? 

Rocket

200

What is the largest planet in our solar system?

A. Jupiter

B. Earth

C. Saturn

A. Jupiter

200

What galaxy is Earth located in?

Milky Way Galaxy

200

How long does it take the Earth to orbit the Sun?

A. 1 week

B. 1 month

C. 1 year

C. 1 year

200

What is the name of a rock that falls from space and lands on Earth?

A. Comet

B. Meteorite

C. Cosmo

B. Meteorite

300

What is the name of the first person to walk the moon?

A. Isaac Newton

B. Neil Armstrong

C. George Washington

B. Neil Armstrong

300

Which planet is famous for its large rings?

A. Neptune

B. Saturn

C. Jupiter

Saturn

300

Which is bigger: a star or a planet?

A star is much bigger than a planet.

300

What causes day and night on Earth?

A. Earth rotating (spinning) on its axis

B. The planet goes to sleep

C. The Sun is in the way

A. Earth rotating (spinning) on its axis

300

What is the name of the telescope that has taken amazing pictures of distant galaxies from space since 1990?

A. James Webb Space Telescope

B. Hubble Space Telescope

C. Chandra X-ray Observatory

Hubble Space Telescope

400

What is the name of the space station where astronauts live and work while orbiting Earth?

International Space Station (ISS)

400

Which planet is closest to the sun?

A. Mercury

B. Mars

C. Earth

A. Mercury

400

True or False: The Sun is a star.

True

400

What is the name of the phase when the Moon looks like a complete circle?

A. Waxing Crescent

B. Full Moon

C. New Moon

B. Full Moon

400

Which planet has the most moons currently known in our solar system?

Saturn

500

Why do astronauts float inside a spacecraft orbiting Earth?

Because they are in microgravity (often called zero gravity) which makes them appear to float.

500

Which planet takes the longest time to travel around the Sun, about 165 Earth years?

Neptune

500

A group of stars that forms a pattern in the sky is called what?

Constellation

500

What is it called when the Moon moves between the Earth and the Sun, blocking the Sun's light?

A solar eclipse

500

What is the name of the first artificial satellite sent into space?

Sputnik 1

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