> I'm not aware of what we've learned from the International Space Station. We learned about the effects of microgravity on the human body for one. Useful for

> I'm not aware of what we've learned from the International Space Station. We learned about the effects of microgravity on the human body for one. Useful for future trips to the Moon and/or Mars. Plus we’ve had the benefit of a microgravity laboratory staffed by world class scientists for two decades. Putting people back on the Moon is valuable just as a technology demonstration and test for more ambitious missions like Mars. As you say, Apollo taught us a lot about the Moon. But it didn’t teach us everything. So if Apollo taught us something then clearly there is value in sending humans. > And the Space Shuttle was an expensive and needless boondoggle that killed fourteen people for no good reason. Without the Shuttle there is no ISS. So any benefit gained from the ISS is owed at least in part to the Shuttle.