from the Sun Ra newsgroup:
Hear a documentary on the life and music of the unique Sun Ra on Radio National's 'Into The Music'. Saturday, September 5 at 5pm."
The Other Worlds of Sun Ra (playlist)
http://abcjazz.net.au/player (how to listen online)
that is going to be saturday, sept. 5th, 2010 at 5pm, australian time, so adjust that to your local time to listen. i did not see any archive link at their site, so this may be 'listen or miss it' thing.