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Astronomy Fundamentals

Astronomy

Basic knowledge about celestial bodies and phenomena.

planets stars solar system galaxies moon

15 Questions Easy Ages 5+ Apr 18, 2026

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About this Study Set

This study set covers Astronomy through 15 practice questions. Basic knowledge about celestial bodies and phenomena. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 15 questions from the Astronomy Fundamentals study set below. Each question shows the correct answer — select a study format above to practice interactively.

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

A Proxima Centauri
B The Moon
C The Sun
D Sirius

2 Which planet is known as the 'Red Planet'?

A Venus
B Mars
C Jupiter
D Saturn

3 What is the largest planet in our solar system?

A Earth
B Saturn
C Neptune
D Jupiter

4 What celestial body orbits the Earth?

A The Sun
B Mars
C The Moon
D Venus

5 A large collection of stars, gas, and dust held together by gravity is called a:

A Nebula
B Asteroid
C Galaxy
D Comet

6 Which planet is closest to the Sun?

A Venus
B Earth
C Mercury
D Mars

7 What is the name of the galaxy we live in?

A Andromeda
B Triangulum
C Whirlpool
D Milky Way

8 What are the rings of Saturn primarily made of?

A Gas
B Rock and metal
C Ice and rock particles
D Liquid water

9 What is the process by which stars produce energy?

A Fusion
B Fission
C Combustion
D Evaporation

10 Which planet is known for its prominent, beautiful rings?

A Jupiter
B Uranus
C Saturn
D Neptune

11 What is the common name for a small, rocky object that orbits the Sun, found mostly between Mars and Jupiter?

A Comet
B Meteoroid
C Asteroid
D Dwarf planet

12 Which planet is the third planet from the Sun?

A Mars
B Earth
C Venus
D Mercury

13 What is a 'light-year' a measure of?

A Time
B Brightness
C Distance
D Speed

14 Which gas is most abundant in the Sun?

A Oxygen
B Helium
C Hydrogen
D Carbon

15 The phenomenon where a star collapses and explodes, briefly outshining an entire galaxy, is called a:

A Black hole
B Supernova
C Nebula
D Pulsar

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