Why the shuttle can't go to the moon: a Beginner's guide to rocket science with @spacekate and @natronics #spacenomad
I'm on my way to watch a shuttle launch! Do-dah, doo-dah! #nasatweetup
Want to hire an astronaut? Call me, or Astronauts4Hire #NSRC
Pam Marcum, SOFIA Project Scientist at #nasatweetup #exo
Taking the plunge, seizing the day, introducing @spacekate