تماشای ویدئو آزمایش بزرگترین موشک سوخت جامد جهان ناسا از آی-ویدئو

For two minutes on June 28, the Space Launch System (SLS) solid rocket boosters — the largest ever built for flight — fired up in an amazing display of power as engineers verify their designs in the last full-scale test before SLS’s first flight in late 2018. Each piece of hardware that’s qualified and each major test — like this one, dubbed QM-2 — puts NASA one step closer on its Journey to Mars. https://blogs.nasa.gov/Rocketology/2016/06/24/behind-the-scenes-at-qm-2-