SpaceMoon
Seismometers left by Apollo crews showed the Moon ringing for up to an hour after an impact.
With no water in its rocks to damp the vibration, the shattered crust scatters the energy instead of absorbing it.
Source
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More space facts
Space facts are where the numbers stop making sense. A total eclipse only works because the Sun is 400 times wider than the Moon and 400 times further away. Venus spins backwards, some of the static on an old TV was the Big Bang, and almost all of the universe is missing. Every fact here links to its source.
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- The dark side of the Moon is not dark.
- Footprints on the Moon will outlast every city on Earth.
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