Trent Nelson | The Salt Lake Tribune NASA's Daniel Dumbacher spoke to ATK employees as ATK and NASA announced savings made in manufacturing the solid rocket boosters for NASA's Space Launch System (SLS) Tuesday October 2, 2012 in Promontory, Utah.you are here skull signatk rocket displayTrent Nelson | The Salt Lake Tribune ATK and NASA spoke of savings made in manufacturing the solid rocket boosters for NASA's Space Launch System (SLS) Tuesday October 2, 2012 in Promontory, Utah. loaded signTrent Nelson | The Salt Lake Tribune Part of a solid rocket booster for NASA's Space Launch System (SLS), on display at ATK Tuesday October 2, 2012 in Promontory, Utah.