Eshed, 87, said that the aliens struck a deal with the U.S. government to stay silent about their existence while they carry out experiments. They also set up camp on Mars, where they sometimes hold talks with American astronauts. The extraterrestrial beings, according to Eshed, came in peace and are seeking humanity's help.
Eshed, who served as Israel's space security chief from 1981 to 2010, said that the aliens are waiting before having their existence divulged to prevent "mass hysteria."
"The aliens have asked not to announce that they are here [because] humanity is not ready yet," said Eshed in a promotional interview for a new book by Hagar Yanai, "The Universe Beyond the Horizon – Conversations with Professor Haim Eshed."
The former space boss bared that President Donald Trump had been in contact with the senior members of the "Galactic Federation" during calls to world leaders such as Supreme Leader of North Korea Kim Jong-un.
"Trump was on the verge of revealing [the alien's existence], but the aliens in the Galactic Federation are saying, 'Wait, let people calm down first,'" said Eshed. The term "Galactic Federation" refers to a major galactic or intergalactic organization that rules areas of the universe. The term is commonly used in science fiction writing.
Eshed said that the U.S. government signed an agreement with the aliens to allow them to perform experiments while they're on Earth. The extraterrestrials, he continued, are also researching about the cosmos in an attempt to understand the whole fabric of the universe. "They want us as helpers," said Eshed.
He added that the aliens hope that human civilization will evolve and reach a stage where people will have a better understanding of what space and spaceships are. (Related: Scientists say that aliens are looking at us like "animals in a zoo".)
Eshed also claims that Americans have already landed on Mars, where the aliens built an underground base to house their representatives and hold talks with astronauts. American astronauts have never been to Mars and the last time they set foot on the Moon was in 1972.
Despite his age, Eshed is well aware that his claims are outlandish: "If I had come up with what I’m saying today five years ago, I would have been hospitalized." He brought up the claims before to colleagues but was told he has "lost his mind."
But Eshed isn't backing down from his assertions: "I have nothing to lose. I’ve received my degrees and awards, I am respected in universities abroad."
A spokesperson for the National Aeronautics and Space Administration (NASA) issued a statement saying that the search for alien life is still ongoing.
"NASA is exploring the solar system and beyond to help us answer fundamental questions, including whether we are alone in the universe," the spokesperson said. Meanwhile, Pentagon spokesperson Sue Gogh declined to comment.
Nick Pope, who used to investigate unidentified flying objects (UFOs) such as "flying saucers" for the British Ministry of Defense, said that while the claims may be "some sort of practical joke or publicity stunt," Eshed may also be someone in the know who is breaking ranks.
Claims that aliens visited Earth have been circulating for a long time. Many alien enthusiasts point to the 1947 "Roswell Incident" where a flying saucer was reported to have crash-landed outside Roswell in New Mexico. The Roswell Army Air Field also issued a statement saying that they had retrieved the remnants of a flying saucer. However, other government authorities disputed the statement and insisted that the debris was from a weather balloon.
Read more alien sighting reports at UFOs.news.