Hazzaa Al Mansoori has joined the two other astronauts that he'll accompany to the International Space Station.
It comes as preparations for the September 25 launch reach an advanced stage.
Al Mansoori was selected earlier this year to become the first Emirati to go into space.
Sultan Al Neyadi was named as his backup.
Over the next three months, the team will train together in Russia as they prepare for the historic eight-day mission.
Only 100 days left until the launch of the first Emirati Astronaut, Hazzaa AlMansoori (@astro_hazzaa) aboard the Soyuz MS-15. #UAEAstronauts Show your excitement in the comment below! pic.twitter.com/wUogKMG7FK
— MBR Space Centre (@MBRSpaceCentre) June 17, 2019
20 content creators chosen for Mr Beast-led '1 Billion Acts of Kindness' campaign
UAE calls for protection of diplomatic buildings after damage to Qatar embassy in Kyiv
H.H. Sheikh Mohammed attends 1 Billion Followers Summit
UAE Minister urges content creators to drive positive societal change
