Solar System
Stars
Space Facts
Planet Science
Neptune
100

What is the largest planet in our solar system?

Jupiter

100

What is the closest star to Earth?

The Sun

100

What force keeps planets orbiting the Sun?

Gravity

100

What planet is closest to the Sun?

Mercury

100

What number planet from the Sun is Neptune?

8th

200

What planet is known as the Red Planet?

Mars

200

What is the cloud of gas and dust where stars are born?

A Nebula

200

What galaxy do we live in?

The Milky Way

200

What planet is known for its thick clouds and extremely hot surface?

Venus

200

What colour does Neptune appear from space?

Blue

300

What is the name of Earth’s natural satellite?

The Moon

300

What stage of a star’s life is the Sun currently in?

Main Sequence

300

What tool do astronomers use to observe distant objects in space?

Telescope

300

Which planet has the largest volcano in the solar system?

Mars (Olympus Mons)


300

What causes Neptune’s blue color?

Methane gas in the atmosphere

400

Which planet has the most famous ring system?

Saturn

400

What do we call a star that explodes at the end of its life?

Supernova


400

How long does it take Earth to orbit the Sun?

1 year / 365 days

400

What planet is the largest gas giant?

Jupiter

400

What is the name of Neptune’s largest moon?

Triton

500

What is the name of the region of icy objects beyond Neptune?

The Kuiper Belt

500

What determines whether a star will end its life as a white dwarf, neutron star, or black hole?

The mass (size) of the star

500

What unit is used to measure distance from Earth to the Sun?

Astronomical Unit (AU)

500

Which planet spins on its side compared to the others?

Uranus

500

Neptune has the fastest winds in the solar system. About how fast can they reach?

Around 2,000 km/h