Apollo 15 15 separated from the booster, the S-IVB maneuvered away, and would impact the Moon about an hour after the crewed spacecraft entered lunar orbit, though due to an error the impact was away from the intended target. The booster's impact was detected by the seismometers left on the Moon by Apollo 12 and Apollo 14, providing useful scientific data. There was a malfunctioning light on the craft's service propulsion system (SPS); after considerable troubleshooting, the astronauts did a test burn of the system that also served as a midcourse correction. This occurred about 028:40:00 into the mission. Fearing that the
Apollo 20 hoax Thierry Speth. However, the website with Speth's admission, Need2know.eu, no longer exists nor does Speth's personal website. Also, more videos associated with other accounts have appeared on YouTube about Apollo 20, suggesting that more than one person is keeping the hoax alive. Like many hoaxes, this story is a mixture of facts and fiction. The starting point for it are photos that NASA astronauts took in 1971 while in lunar orbit during the Apollo 15 mission, the fourth American mission that landed men on the moon. The photos show what look like a cigar-shaped object resting in a lunar crater.