GC050 News Grab Bag #5

Yes, it's time for another "grab bag" episode to get everybody caught up on recent and semi-recent developments in topics I've covered in past episodes. This week's fodder includes updates on the following subjects:

Mars -- see episode 41 (September 2006)
Asteroids and comets and dinosaurs -- see episodes 16, 17 (January 2006), and 24 (April 2006)
RFID -- see episode 13 (January 2006)
"Intelligent Design" -- see episodes 4 (October 2005), 11 (December 2005), 40 (September 2006)