NASA took the next big step on its Journey to Mars on Nov. 4 by placing the first RS-25 flight engine, engine No. 2059, on the A-1 Test Stand at Stennis Space Center.
NASA took the next big step on its Journey to Mars on Nov. 4 by placing the first RS-25 flight engine, engine No. 2059, on the A-1 Test Stand at Stennis Space Center.