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Watch video of NASA test-firing the world's most powerful rocket stage
Firing up Space Launch System's core stage is a crucial step toward flying astronauts to the moon for the first time in more than 50 years.
Science & Tech
NASA plans to test-fire the core stage of its Space Launch System on Saturday around 4 p.m. EST.
The core stage will burn through more than 700,000 gallons of liquid propellant over eight minutes while strapped to a test stand at NASA's Stennis Space Center in Mississippi.
NASA TV plans to broadcast live coverage of the firing — the final test in the agency's "Green Run" series — starting at 3:20 p.m. EST.
The test is a crucial step toward the first launch of SLS, which is currently scheduled for November 2021.
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