STENNIS SPACE CENTER, Miss. - The E-2 Test Stand team at John C. Stennis Space Center is preparing to test a vital component designed for another rocket engine test stand under construction at the NASA facility. Testing on the three-module chemical steam generator (CSG) is designed to confirm it will perform as needed and provide critical data about operating the unit. The new A-3 Test Stand will use nine three-module CSG units to generate superheated steam needed to create a vacuum. The vacuum will allow operators to test next-generation rocket engines at simulated high altitudes up to 100,000 feet. Testing at such simulated altitudes is critical for next-generation engines necessary to carry humans into deep space. (Source: NASA, 03/04/11)