Terraforming the moon underground:

What's especially nifty about using our moon, is if we had the Boeing OASIS outpost/gateway situated at the Earth-moon L1.

Of course the vast majority of K-12s still wouldn't have a clue, or even allowed to learn about such matters. Again, that's not my fault, just like it's not my fault that Google Groups is forcing us to use their buggy and bandwidth sucking G+ version of reading and posting topics and replies into Usenet/newsgroups, except that it also excludes posting to multiple newsgroups and doesn't read nor edit worth a damn compared to their original HTML (text only) format that was clean and fast.