Mar 09

Space Rocket History #152 – The Death of Yuri Gagarin

Hundreds of millions of people all over the planet had seen Gagarin smiling joyfully in person or on television. He was theirs, familiar to everyone, and at the same time a “Citizen of the Universe.”

Yuri Gagarin

Yuri Gagarin

Gagarin's plaque in the Kremlin Wall.

Gagarin’s plaque in the Kremlin Wall.

50th Anniversary stamp for Vostok 1

50th Anniversary stamp for Vostok 1

Aug 29

Space Rocket History #27 – Mercury-Redstone 4 – Liberty Bell 7 with Gus Grissom

Mercury-Redstone 4 was the fourth mission in the Mercury-Redstone series and the second U.S. manned suborbital spaceflight. The mission was essentially a repeat of Alan Shepard’s Freedom 7 flight.   So why was it necessary to launch another sub-orbital mission?  Why not proceed with an orbital flight to match the Soviet Vostok 1?  Among other things the U.S. needed more space experience to corroborate the “Man-in-Space” concept.  Also the Redstone was the only booster NASA had that was approved for manned launches.  The Atlas booster was available but not ready.  Atlas was capable of putting a Mercury Capsule into orbit, but it had been launched three times with unmanned capsules, and it had exploded on 2 of the 3 attempts.

MR-4 Launch

MR-4 Launch

Gus Grissom

Gus Grissom

1137px-Grissom_prepares_to_enter_Liberty_Bell_7_61-MR4-76

Ready to Go

MR-4 Hatch

MR-4 Hatch

513px-Grissom_lifted_from_water_61-MR4-82

Rescue

Liberty Bell 7

Liberty Bell 7