solar system

The Sun contains most of the system's mass. This topic is part of Astronomy within Science & Nature. This page currently draws on 33 supporting questions, with answers and bonus facts available below.

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solar system trivia questions

The solar system is centered on what star?

Answer: Sun

Bonus fact: The Sun contains most of the system's mass.

How many major planets orbit the Sun?

Answer: Eight

Bonus fact: Pluto is classified as a dwarf planet.

Most asteroids in our solar system orbit the Sun between Mars and which planet?

Answer: Jupiter

Bonus fact: The main asteroid belt lies between the orbits of Mars and Jupiter.

Which moon of Jupiter is the largest moon in the solar system?

Answer: Ganymede

Bonus fact: Ganymede is even larger than Mercury.

Which is the largest gas giant in our solar system?

Answer: Jupiter

Bonus fact: Jupiter is the largest planet overall.

What is the largest planet in our solar system?

Answer: Jupiter

Bonus fact: Jupiter is the largest planet in the solar system and is more than twice as massive as all the other planets combined.

Which planet has the shortest day in the solar system?

Answer: Jupiter

Bonus fact: Jupiter takes about 9.9 hours to rotate once on its axis.

What is the hottest planet in our solar system?

Answer: Venus

Bonus fact: Venus has the highest mean planetary temperature because its dense atmosphere produces an intense greenhouse effect.

What is the smallest planet in our solar system?

Answer: Mercury

Bonus fact: Mercury is the smallest of the eight planets and the closest planet to the Sun.

What is the name of the largest volcano in the solar system?

Answer: Olympus Mons

Bonus fact: Olympus Mons on Mars rises more than 25 miles from base to summit and is the largest volcano in the solar system.

What is the name of the enormous canyon system on Mars that is the largest in the solar system?

Answer: Valles Marineris

Bonus fact: Valles Marineris stretches roughly 2,400 miles and is the largest canyon system in the solar system.

Which planet has the strongest winds measured in our solar system?

Answer: Neptune

Bonus fact: Neptune is the solar system's windiest world, with winds exceeding 1,200 miles per hour.

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