According to ALSEP Flight System Familiarization Manual, p. 2-166, some Apollo missions carried a grenade launcher and 4 grenades. What were these used for?

  • $\begingroup$ For the seismic experiments $\endgroup$
    – user20636
    Jul 29, 2019 at 15:04
  • 1
    $\begingroup$ See space.stackexchange.com/a/37774/6944 $\endgroup$ Jul 29, 2019 at 15:05
  • 42
    $\begingroup$ Even more fun, Apollo 14 didn't use their grenades, and they are still on the lunar surface. $\endgroup$
    – DrSheldon
    Jul 29, 2019 at 19:02
  • 3
    $\begingroup$ Due to an influx of joke comments, all joke comments on this post will be deleted. However, we would appreciate your sense of humor in chat if you want to drop by! $\endgroup$
    – called2voyage
    Jul 31, 2019 at 16:49
  • $\begingroup$ Have any of them been used? $\endgroup$ Aug 1, 2019 at 10:17

1 Answer 1


They were part of an active seismic imaging experiment (archived version on wayback)

By setting up a seismometer and setting off surface explosions of known size, you can get a lot of information about how shockwaves propagate underground, from which you can infer structure.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.