An armillary sphere, sundial, telescope, and star chart are arranged with a small figure pointing upward.

Think you know the giants who mapped the skies? Prove it in these tough quizzes

Famous Astronomers & Astronauts

ZapStacks

8

Zaps

174

Ptolemy charted the heavens with math while Aristotle watched the spheres. They laid the groundwork; you take the credit. Can you map the cosmos like the ancients, or will their legacy leave you in the dark? Prove you know the pioneers who first dared to look up.

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ZapStacks

Flat illustration of an astronomer with a telescope, surrounded by planets, stars, and a crescent moon in warm tones

William Herschel

20 Zaps · Medium

Flat illustration of an astronomer with a telescope, a star map, and a flaming comet on a light gray background

20 Zaps · Medium

Isaac Newton represented with period clothing, open book, telescope, and falling apple symbolizing gravity

34 Zaps · Medium

A person in a robe stands at a podium with a star chart, surrounded by an armillary sphere, an astrolabe, and a large sun.

Claudius Ptolemy

20 Zaps · Hard

A person stands surrounded by a telescope, a large compass, globes, a scroll, a ringed planet, and a moon.

Galileo Galilei

20 Zaps · Medium

A stylized figure surrounded by scientific instruments including a telescope, a celestial globe, and a planetary model.

Johannes Kepler

20 Zaps · Hard

A figure in historical robes stands next to an astrolabe, a solar system diagram, a telescope, and a book.

Nicolaus Copernicus

20 Zaps · Medium

A man in historical clothing holds a compass next to a castle, with an armillary sphere, a sextant, and a scroll above him.

20 Zaps · Hard