I wouldn't want to be walking by underneath when that went off.
NASA engineers at Stennis Space Center tested RS-25 engine No. 2059 on the A-1 Test Stand this week. This was the first flight engine for NASA’s new rocket, the Space Launch System (SLS), to be tested at Stennis. RS-25 engine No. 2059 arrived at the A-1 Test Stand at Stennis Space Center on Nov. 4, 2015.