Galileo Galilei
Turned the first telescope to the sky and discovered Jupiter's largest moons.
Astronomy Trivia
Light from the Sun takes about eight minutes to reach Earth — and that is just our cosmic doorstep. Astronomy is the study of everything beyond our planet: stars, planets, moons, galaxies and the black holes that lurk at their cores. Train it between Battle of Geniuses duels to turn cosmic facts into firepower for your heroes.
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Famous people
Edwin Hubble
Proved the universe is expanding; the Hubble Space Telescope bears his name.
Carl Sagan
Astronomer and communicator who made the cosmos feel close to millions.
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Answer the questions, earn coins, and see how you score.
Sample questions
Which planet is closest to the Sun?
Answer: Mercury
What is the name of Earth's only natural satellite?
Answer: The Moon
Which planet is famous for its bright system of rings?
Answer: Saturn
What do we call a rocky object that burns up in Earth's atmosphere?
Answer: A meteor
Quizzes in this discipline
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