NASA has no next-generation manned space exploration vehicle offstage. Officials have talked about developing a new rocket to put something out there, but the chatter sounds pretty vague and demoralized. I’m not persuaded that it will amount to anything. The end of the shuttle era was a poignant moment in American science, full of sad resonances for dissolving dreams of adventure in other worlds. The government is out of [real] money, and capital will only get scarcer as our fossil fuel energy inputs decline. Space travel will probably prove to have been another product of the cheap oil age, retrograde as that sounds. The truth works backward and forward, and sometimes it hurts.