At the height of the Cold War in the 1960s, the United States Air Force and NASA launched a one-of-a-kind jet named the X-15, which is powered by rockets and can reach the extreme limits of space. The...Read more crew needs to put them through their paces to make sure they work properly.
At the height of the Cold War in the 1960s, the United States Air Force and NASA launched a one-of-a-kind jet named the X-15, which is powered by rockets and can reach the extreme...Read more limits of space. The crew needs to put them through their paces to make sure they work properly.
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