Alexei Leonov, Russian general, pilot, and cosmonaut (died 2019)

Alexei Arkhipovich Leonov was a Soviet and Russian cosmonaut and aviator, Air Force major general, writer, and artist. On 18 March 1965, he became the first person to conduct a spacewalk, exiting the capsule during the Voskhod 2 mission for 12 minutes and 9 seconds. He was also selected to be the first Soviet person to land on the Moon although the project was cancelled.

May 30 is the 150th day of the year in the Gregorian calendar; 215 days remain until the end of the year.