Dr. Edgar Mitchell, the sixth man to walk on the Moon during Apollo 14, spent his post-NASA career publicly stating that extraterrestrial life exists and that Earth governments are concealing this truth. In a 2008 interview, Mitchell claimed that sources at NASA, the military, and intelligence community described alien visitors as 'little people who look strange to us.' He co-founded the Institute of Noetic Sciences to study consciousness and claimed the Roswell crash was real. Gordon Cooper, another Mercury/Gemini astronaut, made similar claims, stating 'We are being visited. It is now time to put away this embargo of truth about the alien presence.' NASA officially distanced itself from their claims.