Watch NASA test-fire the world's most powerful rocket stage - a critical step towards the next moon mission

The core stage of NASA's Space Launch System fires its engines for a hot fire test on January 16, 2021, at the Stennis Space Center in Mississippi.
NASA/Robert Markowitz
NASA plans to fire the engines on the core stage of its new moon rocket on Thursday.
If the hot fire succeeds, the Space Launch System rocket could be ready to launch in November.
Watch the test fire live on NASA TV below.
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Update: The SLS core stage successfully fired its engines for