New round of engine tests at Stennis in Miss.

By The Associated Press

BAY ST. LOUIS, Miss. (AP) — NASA kicks off a new round of testing on the J-2X rocket engine this month at the Stennis Space Center in Hancock County.

NASA says in a news release that engineers will conduct a series of tests on the second J-2X development engine, designated number 10002, on the A-2 Test Stand at Stennis.

Once the series is completed, the engine will undergo a series of gimbal, or pivot, tests for the first time.

The J-2X is being developed by Pratt & Whitney Rocketdyne. It is the first liquid oxygen and liquid hydrogen rocket engine rated to carry humans into space to be developed in 40 years.

The J-2X will provide upper-stage power for NASA’s Space Launch System, a new heavy-lift vehicle capable of missions beyond low-Earth orbit.