http://www.nasa.gov/multimedia/nasatv/ustream.html << ustream link!
OR APP BELOW!
Open iTunes to buy and download apps.
The NASA Television App brings live and on-demand TV programming to your iPhone or iPod Touch. Watch the latest NASA events unfold in real-time or select from a list of recently uploaded videos. Plan your viewing up to a week in advance with the NASA TV schedule, and check out a list of NASA-related programming on other networks.
What’s New in Version 1.1
Now available for iOS versions 3.1.2+