SLS Main Engine Test Fire Round Two Ignites with 450-Second Burn at Stennis Space Center

A billowing plume of steam signals a successful 450-second test of the RS-25 rocket engine for NASA’s Space Launch System (SLS) on May 28 at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. Photo Credit: NASA

NASA’s Space Launch System (SLS) rocket is quickly manifesting into reality. Its solid rocket booster was test [...]