Watch NASA fire up a giant rocket booster in the desert tomorrow

NASA is going to light a massive fire in the Utah desert tomorrow morning. The space agency plans to test out one of the solid rocket boosters that will be used on the Space Launch System (SLS), the giant expandable rocket that NASA is building to take humans into deep space. For the test, the engines on the booster will be ignited for two minutes at Orbital ATK’s test facilities in Promontory, Utah. The booster itself won’t be going anywhere, since it will be horizontal and con