Hello Laurenzo. That’s a lovely question. The biggest rock return from the Moon weighed 11.7 kg. To carry back on a small space-craft, that was pretty big! One of the biggest rocks I’ve found on Earth was from a volcano in Iceland! It is called a volcanic bomb! That’s because it was violently erupted from a volcano…like a bomb! I have it in my living room and it’s just under half a meter in length! I love it : -)
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