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Flat illustration of a telescope, a rocky asteroid, and the Earth with a golden ring on a light gray background

Will you spot the rock before it hits or will you fail this asteroid quiz today?

Asteroids & Comets

Difficulty

Medium

Questions

20

Volts

2/q

Humanity struck a distant moonlet to see if we could survive, but the real test is your memory. From the Catalina Sky Survey to the Pan-STARRS1 lens, the hunt for loose rock clusters is on. Name the distance, define the hazard, and show us you know exactly how close is too close.

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