NASA Completes Engine Test Firing Of Moon Rocket On 2nd Try

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In this image from video made available by NASA, the core stage of the Space Launch System, NASA’s planned moon rocket, is tested at the Stennis Space Center near Bay St. Louis, Miss., on Thursday, Mar. 18, 2021. With this critical test finally finished, NASA now will send the rocket segment to Kennedy Space Center for launch preparations. (NASA via AP)

CAPE CANAVERAL, Fla. (AP) — NASA completed an engine test firing of its moon rocket Thursday, after the first attempt in January ended prematurely.

This time, the four main engines of the rocket’s core stage remained ignited for the full eight minutes. Applause broke out in the control room at Mississippi’s Stennis Space Flight Center once the engines shut down on the test stand.

“Success!” tweeted Kathy Lueders, head of NASA’s human exploration and operations office.

On the first test firing, the engines fired for just a minute, automatically cut short by strict test limits that were relaxed for the redo. Valve issues also had to be resolved prior to Thursday’s countdown.

The SLS or Space Launch System rocket is what NASA intends to use to send astronauts back to the moon. The first flight is planned for late this year or next, to send an empty Orion capsule going to the moon and back.

With this critical test finally finished — and assuming everything went well — NASA can now send the rocket segment to Florida’s Kennedy Space Center to prepare it for launch.

The four engines tested Thursday actually flew into orbit on NASA’s space shuttles and were upgraded for the more powerful SLS system. The orange core stage is reminiscent of the shuttle’s external fuel tank, which held the liquid hydrogen and oxygen that fed the main engines.

Boeing built the core stage, which stands 212 feet (65 meters.)

The Trump administration had pressed for a moon landing by astronauts by 2024, a deadline increasingly difficult if not impossible to achieve at this point. The current White House has yet to issue a revised timeline.


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