WATCH: NASA fires SLS core stage engines in second hot fire test


STENNIS SPACE CENTER, Miss. — NASA conducted the final hot-fire test of its new Space Launch System core stage Thursday.

The anticipated test involved firing the four RS-25 engines on the system’s core stage, which produced a combined 1.6 million pounds of thrust. The test was set to go for 4 minutes to collect data and after that time they continued to fire the engines until the fuel tanks were empty.

This was NASA’s second attempt at the final hot-fire test. The first attempt in January was cut short 67 seconds into the test when a component with Engine 2 exceeded the pre-set test limits and triggered an abort that shut the engines down.

The Green Run test series assesses the rocket’s core stage before launching the Artemis missions to the Moon.

The core stage will now be taken to the Kennedy Space Center and reassembled to be part of the Artemis 1 mission set to take place later this year.

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