Cosmology Trivia Questions
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Study of the origin and evolution of the universe. Play Cosmology trivia solo to sharpen your knowledge, or challenge a friend head-to-head in Trivia Tango — every question comes with an explanation so you learn as you play. Questions span every level, from easy warm-ups to expert-level stumpers, so there's a real challenge here however much you already know.
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Sample Cosmology Quiz Questions
A mix of easy, medium and hard — questions run from warm-up to expert, so there's a real challenge at every level. Think you know the answers? Play to find out.
This event, occurring approximately 13.8 billion years ago, is considered the origin of our universe.
Difficulty: Easy- The Big Bang
- The Great Expansion
- The Cosmic Dawn
- The Universal Genesis
This model describing the composition of the universe assigns roughly 5% to ordinary matter, 27% to dark matter, and 68% to dark energy.
Difficulty: Medium- Lambda-CDM Model
- Steady State Model
- MOND Theory
- Cyclic Model
This theoretical bound limits the maximum luminosity of a star or AGN where radiation pressure balances gravitational attraction.
Difficulty: Hard- Eddington Luminosity
- Chandrasekhar Luminosity
- Kelvin-Helmholtz Luminosity
- Bondi Luminosity
This spiral galaxy, containing our Solar System, is home to an estimated 100-400 billion stars.
Difficulty: Easy- Andromeda
- The Milky Way
- Triangulum
- Whirlpool
This radius defines the distance from a black hole's center at which the escape velocity equals the speed of light.
Difficulty: Medium- Roche Limit
- Schwarzschild Radius
- Hill Sphere
- Bondi Radius
This phenomenon in inflation suggests that quantum fluctuations cause some regions to keep inflating forever while others stop and form pocket universes.
Difficulty: Hard- Chaotic Inflation
- Eternal Inflation
- Hybrid Inflation
- Warm Inflation
These cosmic objects have gravitational pulls so strong that not even light can escape from them.
Difficulty: Easy- Neutron Stars
- White Dwarfs
- Quasars
- Black Holes
This process describes how the first atoms formed about 380,000 years after the Big Bang when the universe cooled enough for electrons to bind to nuclei.
Difficulty: Medium- Nucleosynthesis
- Baryogenesis
- Recombination
- Reionization
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