July 21, 1961 12:20 pm
Mercury-Redstone 4
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Redstone
Cape Canaveral SFS, FL, USA
Days
Hours
Minutes
Seconds
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Last Updated:
2026-07-13 23:26:12
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.
Launch Overview
Window Open
12:20 UTC
Window Close
12:20 UTC
Lift Off
Jul 21, 1961 · 12:20 UTC
Launch Facility
Cape Canaveral SFS, FL, USA
Launch Pad
Launch Complex 5
Target Orbit
Suborbital
Payload Overview
Customer
National Aeronautics and Space Administration
Payload
Mercury-Redstone 4
Rocket
Redstone
Destination
Suborbital
Recovery Overview
Landing Location
See Mission Notes
Landing Type
RTLS / Droneship
Watch Live
📺 Watch on YouTube
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.
Height
LEO Payload
Total Launches
Status
National Aeronautics and Space Administration
Launch Complex 5
Launch Overview
Window Open
12:20 UTC
Window Close
12:20 UTC
Lift Off
Jul 21, 1961 · 12:20 UTC
Launch Facility
Cape Canaveral SFS, FL, USA
Launch Pad
Launch Complex 5
Target Orbit
Suborbital
Payload Overview
Customer
National Aeronautics and Space Administration
Payload
Mercury-Redstone 4
Rocket
Redstone
Destination
Suborbital
Recovery Overview
Landing Location
See Mission Notes
Landing Type
RTLS / Droneship
Watch Live
📺 Watch on YouTube
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