Redstone MRLV | Mercury-Redstone 4
Launch Successful
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
July 21, 1961, 12:20 p.m. - July 21, 1961, 12:20 p.m.
Instantaneous launch window.
July 21, 1961, 12:20 p.m. - July 21, 1961, 12:20 p.m.
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.
The Mercury-Redstone Launch Vehicle, designed for NASA's Project Mercury, was the first American manned space booster. It was used for six sub-orbital Mercury flights from 1960–61; culminating with the launch of the first, and 11 weeks later, the second American (and the second and third humans) in space. The four subsequent Mercury human spaceflights used the more powerful Atlas booster to enter low Earth orbit. A member of the Redstone rocket family, it was derived from the U.S. Army's Redstone ballistic missile and the first stage of the related Jupiter-C launch vehicle; but to human-rate it, the structure and systems were modified to improve safety and reliability.
Mercury No.11 is the Mercury capsule used for the Mercury-Redstone 4 - callsign "Liberty Bell 7" - mission launched on July 21, 1961 and piloted by astronaut Virgil "Gus" Grissom.
Mercury Details
Date of
Birth: April 3, 1926
Date of Death:
Jan. 27, 1967
In July 1959, NASA chose the Redstone missile as the basis for the Mercury-Redstone Launch Vehicle to be used for suborbital test flights of the Project Mercury spacecraft. Three unmanned MRLV launch attempts were made between November 1960 and March 1961, two of which were successful. The MRLV successfully launched the chimpanzee Ham, and astronauts Alan Shepard and Gus Grissom on three suborbital flights in January, May and July 1961, respectively.
INFO WIKIA batch of 21 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Glonass-K2 are the fourth generation of satellite design for GLONASS satellite navigation system. GLONASS is a Russian space-based navigation system …
Details TBD.
Progress resupply mission to the International Space Station.
Commercial Earth observation satellites (~540 kg each) built by CAST for China Siwei Survey and Mapping Technology Co. Ltd., with resolution down to …
A batch of 21 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
This is the second mission of Nova-C lunar lander developed and built by Intuitive Machines. This time it carries a NASA payload called PRIME-1 (Pola…
NS-30 is the 10th crewed flight for the New Shepard program and the 30th in its history.
A batch of 22 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Ku-band geostationary communication satellite for China Satcom at 110.5° East, replacing ChinaSat 10.
