http://www.ustream.tv/nasajpl2 this one seems to be the go
http://www.nasa.gov/multimedia/nasatv/index.html
well, supposed to be on, but cant find it yet?? Maybe 2.30 pm per nasa programme.
http://www.universetoday.com/83244/r...ith-icy-comet/
Stardust craft about to have a close encounter with Comet Tempel 1, in
http://stardustnext.jpl.nasa.gov/