Third-party evidence for Apollo Moon landings minus 6 million years. The test was done by a group of researchers headed by Alexander Nemchin at Curtin University of Technology in Bentley, Australia. The detection on Earth of reflections from laser ranging retro-reflectors (LRRRs, or mirrors used as targets for Earth-based tracking lasers) on Lunar Laser Ranging experiments left on the Moon is evidence of landings. Quoting from James Hansen's biography of Neil Armstrong, "": For those few misguided souls who still cling to the belief that the Moon landings never happened, examination of the results of five decades of LRRR experiments should evidence how delusional their rejection
Deliberate crash landings on extraterrestrial bodies NASA used crash landings to test whether Moon craters contained ice by crashing space probes into craters and testing the debris that got thrown out. Several rocket stages utilized during the Apollo space program were deliberately crashed on the Moon to aid seismic research, and four of the ascent stages of Apollo Lunar Modules were deliberately crashed onto the Moon after they had fulfilled their function. The Deep Impact mission had its own purpose-built impactor which hit Comet 9P/Tempel 1. Terminal approaches to gas giants which resulted in the destruction of the space probe count as crash landings for the