Douglas Wheelock is one of the most interesting Twitter users. Wheelock is a NASA Astronaut that studied engineering at Georgia Tech. From outer space, Wheelock sends out some very interesting Twitpics. He sent out the picture above when writing: “Hurricane Earl is gathering some serious strength. It is incredible what a difference a day makes when you?re deal.” If you’re not following @Astro_Wheels on Twitter yet, I highly recommend that you do.