Are explosions in space really that dangerous?

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Not talking about your ship exploding, that’s obviously bad. I’m talking about how much damage would a bomb actually do if exploded in the moon for example. I understand there is no atmosphere to push against, but I don’t understand what else appart from the shrapnel could cause damage. Isn’t most of a bomb’s damage produced by the shockwave? And shockwaves cannot be produced in a vacuum, right?
Also, let’s say it’s a nuclear bomb. The radiation is obviously bad, but with some shielding, same here, what damage will it actually do?

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Anonymous 0 Comments

After an explosion on the moon, without atmosphere any shrapnel that went up would rain down without loss of speed. A simple grenade could send fragments that could come down many km away at full speed.

Obviously the shrapnel would spread and be at very low density – but when you consider that the life of people on the surface of the moon is going to depend on being in an airtight suit or chamber, a single shrapnel fragment could be deadly at km range.

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