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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.

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The test is a crucial step toward the first launch of SLS, which is currently scheduled for November 2021.

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https://us.yahoo.com/news/watch-live-video-nasa-test-174713769.html