- John Culberson, the current favorite to replace retiring Virginia Congressman Frank Wolf (current chairman of the subcommittee that oversees NASA) next year is a huge supporter of planetary science, especially Europa! http://blog.chron.com/sciguy/2013/12/love-planetary-science-dying-to-explore-europas-oceans-meet-the-man-who-can-make-it-happen/ 17 comments space