Air & Space Magazine Test Run Good Luck NASA test fires an RS-25 engine at Stennis Space Center in Mississippi last February. Four of these engines, along with two solid rocket boosters, will power the Space Launch System. NASA April 21, 2017 ShareCopy linkEmailSMSFacebookXRedditLinkedInBlueskyPrintAdd as preferred source You Might Also Like Gravity Testing July 22, 2013 Milestone Earth Viewing July 25, 2014 Typhoon Season May 25, 2016 Sewing the Sunshade July 8, 2016 Eyes on the Earth December 15, 2011 Get the latest stories in your inbox every weekday. Email Powered by Salesforce Marketing Cloud (Privacy Notice / Terms & Conditions)