Mammoth SLS Booster Test Fired in Utah One Final Time Before Inaugural Orion EM-1 Launch

Booster for the most powerful rocket in the world, NASA’s Space Launch System (SLS), successfully fired up Tuesday for its second qualification ground test at Orbital ATK’s test facilities in Promontory, Utah. This was the last full-scale test for the booster before SLS’s first uncrewed test flight with NASA’s Orion spacecraft in late […]

Picture-Perfect Booster QM-1 Test Fire Marks Big Milestone for NASA SLS Development

An Orbital ATK five-segment solid rocket booster igniting on the test stand in Promontory, Utah, on March 11, 2015, unleashing 3.6 million pounds of thrust within a second for the Qualification Motor-1 (QM-1) test fire for NASA’s Space Launch System (SLS). Photo Credit: Mike Killian / AmericaSpace

The solid rocket booster that will […]

Solid Rocket Booster for NASA's Space Launch System Ready for Wednesday Test Fire in Utah

Orbital ATK five-segment solid rocket booster on the test stand in Promontory, Utah. Photo Credit: Orbital ATK

When NASA’s heavy-lift Space Launch System (SLS) rocket launches the agency’s Orion deep-space crew capsule for the first time in late 2018, it will mark the beginning of a new chapter in America’s human spaceflight efforts, […]

NASA, Orbital ATK to Debut 'Flight-Like Avionics' During Upcoming SLS Booster Firing

File photo of a five-segment ATK solid rocket booster on the company’s test stand in Promontory, Utah. The 154-foot booster, which is in development for NASA’s Space Launch System (SLS), will produce heat two-thirds the temperature of the Sun, and its 12-foot-diameter cylinder will deliver 3.6 million pounds of thrust when the rocket […]

ATK Schedules First Full-Scale SLS Booster Qualification Motor Test Fire for March 2015

File photo of a five-segment ATK solid rocket booster on the company’s test stand in Promontory, Utah. The 154-foot booster, which is in development for NASA’s Space Launch System (SLS), will produce heat two-thirds the temperature of the Sun, and its 12-foot-diameter cylinder will deliver 3.6 million pounds of thrust when the rocket […]

ATK Completes Critical Design Review for Five-Segment SLS Rocket Booster

ATK’s five-segment solid rocket booster will power America’s new rocket, NASA’s Space Launch System, which is on track to launch in 2017. Photo Credit: PRNewsFoto/ATK

When NASA’s giant 320-foot-tall Space Launch System (SLS) rocket flies its first unmanned Orion/SLS flight test in 2017, one of the most noticeable—if not the most noticeable—characteristics of […]