This Week in NASA History: Cryogenic Proof Testing of S-II-4 at the Mississippi Test Facility – March 23, 1968

This week in 1968, workers at the Mississippi Test Facility – today’s NASA Stennis Space Center – conducted cryogenic testing of the Saturn V second stage, S-II-4 to certify the integrity of the S-II stage’s LH2 liquid hydrogen tank.

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