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SLS Booster ‘Chills Out’ Ahead of Super-Hot Ground Test

SLS booster being cooled
An Orbital ATK technician inspects hardware and instrumentation on a full-scale, test version booster for NASA's new rocket, the Space Launch System.

An Orbital ATK technician inspects hardware and instrumentation on a full-scale, test version booster for NASA’s new rocket, the Space Launch System. The booster is being cooled to approximately 40 degrees Fahrenheit ahead of its second qualification ground test June 28 at Orbital ATK’s test facilities in Promontory, Utah. Testing at the thermal extremes experienced by the booster on the launch pad is important to understanding the effects of temperature on the performance of how the propellant burns.

Image Credit: Orbital ATK