The launch of STS-1, the first Space Shuttle mission, is also honored, as it was launched 20 years to the day of Vostok 1 on April 12, 1981.
Lansiranje STS-1, prve misije Space Shuttlea, također se obilježava jer se to dogodilo točno 20 godina od dana Vostoka 1, 12. travnja 1981.