"Where’d those boulders come from?"

That’s the question being asked by space scientists after the Cassini spacecraft returned images from its 175-kilometre-away pass of Saturn’s moon Enceladus. The landscape is strewn with giant boulders–and right now, nobody can explain how they got there.

I love it when space probes–or other kinds of scientific research–result in surprises like this. Show you how little we really understand, despite everything we think we do.

Permanent link to this article: https://edwardwillett.com/2005/07/whered-those-boulders-come-from/

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