DrScheme in Space This was initially written for my regular column in the Brown Computer Science departmental magazine, conduit!, for the Fall 2003 issue. I think it’s far too much fun to leave hidden in such an obscure place. The prose is unchanged since then (so some of the classification information may well be incorrect); only the marginal notes are new. The sender’s name was in all-upper-case, and the subject line read, “Not exactly...”. Spam. But I’m glad I opened it anyway. “This is not exactly your normal query...”, the message body began. It was from an upstanding citizen at the NASA