The Moon is often described as a pristine, silent world. No rain, no wind, no atmosphere to speak of. What that also means, in a very practical sense, is that nothing up there rusts, erodes, or gets ...

Splashdown of Apollo 15 command module "Endeavour" in the Pacific Ocean on August 7, 1971. During Earth re-entry and descent, one of the 3 parachutes failed to open fully. As a result, descent ...