NASA sets date for first hot fire test of Space Launch System Fri, 01/08/2021 - 12:00am STENNIS SPACE CENTER, Miss., Jan. 05, 2021 (GLOBE NEWSWIRE) -- Four Aerojet Rocketdyne RS-25 engines are being targeted to hot ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about NASA sets date for first hot fire test of Space Launch System