SLS: Nasa's 'megarocket' engine test ends early

A critical engine test for Nasa's new "megarocket" - the Space Launch System (SLS) - has ended early.

Shortly before 22:30 GMT (17:30 EST), the four engines ignited with a flash, burning for more than two minutes before the test was aborted.

The core stage of the SLS was being tested at Stennis Space Center, near Bay St Louis, Mississippi.

The engines were supposed to fire for eight minutes to simulate the rocket's climb to orbit.

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