Boeing and Aerojet Rocketdyne test CST-100 thrusters

Boeing's CST-100 spacecraft is one step closer to liftoff after a gauntlet of test firings of its steering jets at White Sands Space Harbor in Las Cruces, N.M. Boeing and Aerojet Rocketdyne recently completed the tests, which simulated the demanding environment of space. The tests assessed how the thrusters -- which fire with 1,500 pounds of force -- will speed up, slow down and move the spacecraft while carrying NASA astronauts in Earth’s orbit.