SpaceX has accomplished one of their major goals - they safely landed a rocket back on earth yesterday after it had launched satellites while in space.
Blue Origin, too, accomplished the safe return of a rocket from space, about a month ago. Owner Jeff Bezos (he also owns Amazon) says, "“Now safely tucked away at our launch site in West Texas is the rarest of beasts—a used rocket.”
According to Elon Musk (CEO of both SpaceX and Tesla), "That really is the fundamental breakthrough needed to revolutionize access to space.”
Two obvious reasons for that . . human space explorers have to return to earth alive, and there's much more that can be done if the cost of sending up a rocket is cut by 90-1000%.
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