Blue Origin founder Jeff Bezos successfully flew to space in July 2021 alongside his half-sibling Mark Bezos, aviator Wally Funk, and Olivier Daemen.

After they returned to Earth, he said: “Best day ever.”

The company’s first human flight earned four Guinness World Records after the rocket crossed the Kármán line. The Bezos brothers became the first siblings to go to space at the same time, while Wally, who was 82 years and 169 days old at the time, was recognized as the oldest person to go to space.

Olivier, who was 18 years and 334 days old during the flight, was also named as the youngest person to travel to space.

The July 2021 mission became the first suborbital spacecraft to carry paying customers, according to the Guinness World Records.

“My expectations were high and they were dramatically exceeded,” Jeff said in a post-launch press conference, adding Earth’s atmosphere is “actually incredibly thin. It’s one thing to recognize that intellectually. It’s another thing to see with your own eyes how fragile it is.”