NASA
/
Liberty Bell 7 (MR-4)
Launch Success
Liftoff Time (GMT)
12:20:36
Friday July 21, 1961
Watch Replay
Official Livestream
Mission Details
Mercury-Redstone 4
Mercury-Redstone 4 was the second United States human spaceflight, on July 21, 1961. The suborbital Project Mercury flight was launched with a Mercury-Redstone Launch Vehicle, MRLV-8. The spacecraft, Mercury capsule #11, was nicknamed the Liberty Bell 7, and it was piloted by the astronaut Virgil "Gus" Grissom.
Suborbital
1 Payload
Rocket
Launch Site
Stats
Mercury-Redstone
6th
Mission
4th
Mission of 1961