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postmortem

  • adj.. Occurring or done after death.
  • n.. Examination after death; analysis after event.

lunar litter

  • n.. Trash and debris left on the moon's surface.

visual confirmation

  • n.. Verification by seeing or visual evidence.

upper stage

  • n.. The stage of a rocket after the first stage.

particles

  • n.. Small units of matter.
  • n.. Subatomic particles.

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