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SLS is going to cost NASA, what, $4B per launch and it's going to launch every 2 years. Careful what you wish for.

We (the US) have a space program because of the military. In fact, the military/intelligence space program is booming and space-based companies are going to be very healthy supporting military missions to LEO and beyond for the foreseeable future.

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SLS is estimated to be 500m per launch, about half what the shuttle cost and 1/6th what the Saturn V cost per launch.

Real world costs aren't entirely here considering this thing isn't built, but 500m is the planned cost and should be doable. Worst case scenario it costs us what the shuttles cost, except we're no longer trapped in LEO.

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