The former astronaut announced his nuptials on Twitter.

“On my 93rd birthday & the day I will also be honored by Living Legends of Aviation I am pleased to announce that my longtime love Dr. Anca Faur & I have tied the knot,” Aldrin wrote.

“We were joined in holy matrimony in a small private ceremony in Los Angeles & are as excited as eloping teenagers,” he posted.

Posting two photos of himself in a tuxedo and Faur in a long-sleeved glittering dress, Aldin also thanked fans for their birthday wishes in another Friday tweet.

“It means a lot and I hope to continue serving a greater cause for many more revolutions around the sun,” he wrote.

In July 1969, mission commander Armstrong, lunar module pilot Buzz Aldrin, and command module pilot Michael Collins blasted off in Apollo 11 on a nearly 250,000-mile journey to the moon. It took them four days to reach their destination.