There and Back Again: A Packet's Tale - How does the Internet work?
We're NASA and We Know It (Mars Curiosity)
Complete MSL Curiosity Descent - Full Quality Enhanced 1080p + Heat Shield impact
Science off the Sphere: Yo-Yos in Space, via YouTube.
Street Corner Science: with Nobel Prize winner Dr. Leon Lederman
Liquid Nitrogen and 1500 Ping Pong Balls Video