Marcus Jim Bezos (/ˈbeɪzoʊs/ BAY-zohss;[1] born c. 1967) is an American space tourist and former advertising executive.

He is the half-brother of Jeff Bezos, the founder of Amazon,[2] with whom he flew to the edge of space as part of the Blue Origin NS-16 mission on July 20, 2021.

[8] He owns an unknown stake in his brother's company Amazon; $10,000 of shares he bought in 1996 were estimated to be worth $640 million in 2018.

[8] On July 20, 2021, he flew to the edge of space alongside his brother Jeff, Wally Funk and Oliver Daemen, aboard the Blue Origin NS-16 flight.

[12] The suborbital flight lasted over 10 minutes, reaching a peak altitude of 66.5 miles (107.0 km).