President Donald Trump told a room of NASA scientists that he “genetically” believes in space during a visit to the Johnson Space Center in Houston.

The president appeared at the center on Friday, promising to sign an executive order to create a U.S. Space Academy. While delivering remarks at the event, Trump mentioned his interest in outer space.

“I had an uncle who was a great scientist, he was a great man,” he said, adding that his uncle, John G. Trump, physicist at the Massachusetts Institute of Technology for 41 years. “He loved space, he used to tell me about space, all space.”

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“So, I guess we have genetically, we sort of, I believe in that stuff,” he continued. “I love it. I find it so interesting, so amazing.”

Almost immediately, the president was viciously mocked on social media. “I like how there’s just zero reactions from the people behind him. I guess that’s what happens when a group of NASA engineers are forced to listen to a moron with a microphone spew incoherent nonsense about space,” wrote one person, adding, “Also, what the hell does it mean to ‘believe in space?'”

“My mom taught French but I did not genetically get that knowledge. What did she do wrong?” wrote another person. A third wrote: “He’s actually speaking in front of educated people and they know he’s an imbecile.”

“I guess smart skips a generation,” wrote a fourth person. A fifth person said that space doesn’t require belief. “It’s there. You can look at it with your eyes.”

The Artemis II took off on April 1 and returned to Earth after a nine-day voyage around the moon. It was the first crewed mission of the Artemis program, a NASA initiative to establish a long-term base near the moon’s south pole within the next few years.

Four astronauts manned the Artemis: NASA’s Reid Wiseman, Victor Glover, and Christina Koch, as well as Canadian Space Agency astronaut Jeremy Hansen. The foursome looped around the lunar far side. There hadn’t been a crewed trip beyond low Earth orbit since the Apollo 17 mission in 1972.

Artemis II astronauts ventured farther from Earth than any other humans ever had before.

It was a historic journey that sparked interest worldwide. The crew was also lucky enough to witness a total solar eclipse from beyond the moon, another occurrence never before seen by human eyes.

Typically, the Congressional Space Medal of Honor is awarded to “to any astronaut who in the performance of his duties has distinguished himself by exceptionally meritorious efforts and contributions to the welfare of the Nation and of mankind,” NASA wrote in a description of the award, citing Congress’s stated criteria.