Busy Summer of SLS Engine Testing on the Stennis A1 Test Stand

RS-25 SLS test fire Aug 9, 2017. Credit: NASA

Testing of the new brain for the RS-25 engines that will help power the colossal Space Launch System (SLS) rocket uphill from launch pad 39B in the coming years has been on a roll at NASA’s Stennis Space Center all summer, and they just […]

Seventh RS-25 Test Fire of 2015 Closes Out First SLS Main Engine Test Series

The RS-25 engine fires up for a 535-second test Aug. 27, 2015 at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. This is the final in a series of seven tests for the development engine, which will provide NASA engineers critical data on the engine controller unit and inlet pressure conditions. Credits: […]

SLS Development RS-25 Engine Ignites for Successful Full Duration Test Fire #6

The world’s most efficient rocket engine came to life again today, unleashing 512,000 pounds of thrust and a thunderous roar across southern Mississippi and NASA’s Stennis Space Center during a 535-second full power test fire. The same engine that powered the space shuttle so reliably for years, the RS-25, will again be employed […]