…meeting of the division for planetary sciences of the American Astronomical society here in Austin. I have to say something about Lyndon Johnson since this whole building and this lecture hall is named after him. There are lots of things to say about him,…

…reconnaissance and treaty verification satellites which calm the paranoids and hotheads on all sides worth their weight in gold, as Lyndon Johnson once said. Satellites that monitor the environmental health of the earth which we're just beginning to do in a…