I repeatedly subject my students to live streaming video of rocket lift-offs and astronauts repairing and maintaining the International Space Station and Hubble satellite. Facinating how we can have live feed from outer space, plus the pictures the satellites and astronauts take are simply amazing. I feel so privileged to be able to communicate (tweet) with astronauts that are "down-to-earth" people, such as @Astro_Mike. Today Astro_Mike was doing maintenance on the Hubble satellite.
For all you astronaut-wannabees (like me), enjoy NASA TV.
Also, here is an interesting photograph, blogged by @BadAstronomer, that shows the space shuttle, Hubble, and the sun.