NASA astronauts believe aliens have been to Earth

A NASA astronaut thinks aliens really exist and sometimes visit Earth.

Edgar Mitchell

Edgar Mitchell is the sixth person to step on the Moon.(Photo: Inverse).

Edgar Mitchell became the sixth person to step on the Moon in 1971 after the space flight of Apollo 14 by NASA. He underwent a change in consciousness on his return journey and spent his life demonstrating the existence of aliens since then.

According to Mitchell, aliens have previously saved humanity from nuclear war and affirmed that the Vatican conceals the truth about an alien race trying to share secrets about new energy sources.

The former NASA astronaut also believed the US government was hiding the Roswell incident, in which a flying saucer spotted near a small town in New Mexico."The reason they deny is because they don't know if aliens are hostile , " Mitchell said. He died in the hospital on February 4, 2016 at the age of 85.

Gordon Cooper

Gordon Cooper joined NASA's Project Mercury mission.(Photo: NASA).

Gordon Cooper is one of seven astronauts selected for NASA's first manned mission. Named Project Mercury, the mission lasts from 1958 to 1963 to bring people into orbit. However, the spacecraft is controlled automatically instead of being operated by astronauts on board.

Cooper said he had seen a UFO fly over Germany in 1951. He also claimed to have seen aliens at an experimental US air base."I believe the vehicles and aliens are visiting planets. They are more advanced than humans on Earth , " Cooper said.

He had Parkinson's disease at the age of 77 and died after a heart attack on October 4, 2004.

Deke Slayton

Deke Slayton served as NASA's flight crew chief executive.(Photo: Listverse).

Deke Slayton also joined the Project Mercury mission and later became NASA's flight crew chief executive. He once reported sightings of UFOs in 1951.

"It looks like a disc at 45 degrees. I don't have a camera to record it. At that time, it flew higher and higher and disappeared," Slayton said.

Slayton was diagnosed with malignant brain tumors in 1992 and died at 69 on June 13, 1993.

Brian O'Leary

Brian O'Leary believes aliens are trying to contact us.(Photo: Wikimedia Commons).

Brian O'Leary was on NASA's list of candidates for the Mars mission in 1967 but the program was delayed a year later. A near-death experience at the end of his life changed O'Leary's view of aliens."There is much evidence that aliens are contacting us. Civilizations have been watching us for a long time and their appearance is quite strange from a western point of view , " O'Leary to speak.

O'Leary died of bowel cancer on July 28, 2011 in his hometown in Vilcabamba, Ecuador.