Space and Universe Quiz
The universe is about 13.8 billion years old, stretches at least 93 billion light-years across, and contains more stars than grains of sand on every beach on Earth. This quiz tests your knowledge of its most fascinating facts, from the Big Bang to black holes.
Questions range from the scale of our solar system to the life cycles of stars, the behavior of black holes, and the key missions that have expanded our understanding of the cosmos.
Whether you're a space enthusiast or a curious newcomer, this quiz covers the biggest ideas in astronomy and cosmology.
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Sample questions3 of 10 shown
Q1
How old is the universe according to current scientific consensus?
Q2
What is the name of the galaxy we live in?
Q3
What is a light-year a measure of?
What This Quiz Covers
- The Big Bang theory and the age of the universe (13.8 billion years)
- Black holes: event horizons, singularities, and Hawking radiation
- The Milky Way: our galaxy's size, shape, and place in the Local Group
- The speed of light: 299,792 km/s and why nothing can exceed it
- Light-years: measuring distance in space and the nearest star to Earth
- The life cycle of stars: main sequence, red giant, supernova, neutron star
- Major space missions: Apollo, Hubble, Voyager, James Webb Space Telescope
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