GODSPEED? This man is about to launch himself in his homemade rocket to prove the Earth is flat.

Seeking to prove that a conspiracy of astronauts fabricated the shape of the Earth, a California man intends to launch himself 1,800 feet high on Saturday in a rocket he built from scrap metal.

Assuming the 500-mph, mile-long flight through the Mojave Desert does not kill him, Mike Hughes told the Associated Press, his journey into the atmosflat will mark the first phase of his ambitious flat-Earth space program.

Hughes’s ultimate goal is a subsequent launch that puts him miles above the Earth, where the 61-year-old limousine driver hopes to photograph proof of the disc we all live on.

“It’ll shut the door on this ball earth,” Hughes said in a fundraising interview with a flat-Earth group for Saturday’s flight. Theories discussed during the interview included NASA being controlled by round-Earth Freemasons and Elon Musk making fake rockets from blimps.

Hughes promised the flat-Earth community that he would expose the conspiracy with his steam-powered rocket, which will launch from a heavily modified mobile home — though he acknowledged that he still had much to learn about rocket science.

I think — I hope — he’s putting us on.