Stars & Galaxies Quiz
Black holes, nebulae, constellations and the life and death of stars.
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About the Stars & Galaxies Quiz
Beyond our solar system lie billions of stars in billions of galaxies. This quiz covers how stars are born and die, black holes, famous constellations and the scale of the universe.
This quiz has 20 questions, served in rounds of 10 with a fresh mix and shuffled answers every time you play. Every answer comes with a short explanation.
Sample Stars & Galaxies Questions & Answers
Q1. What is the name of the galaxy we live in?
✅ Answer: Milky Way
💡 The Milky Way is a barred spiral galaxy containing an estimated 100 to 400 billion stars.
Q2. What is the nearest star to Earth after the Sun?
✅ Answer: Proxima Centauri
💡 Proxima Centauri is about 4.2 light-years away.
Q3. What is a light-year a measure of?
✅ Answer: Distance
💡 A light-year is the distance light travels in a year, about 9.46 trillion km.
Q4. What is the nearest large spiral galaxy to the Milky Way?
✅ Answer: Andromeda
💡 Andromeda is about 2.5 million light-years away and is expected to merge with the Milky Way in billions of years.
Q5. What is the brightest star in the night sky?
✅ Answer: Sirius
💡 Sirius, in Canis Major, is bright because it is both luminous and relatively close.