Today SpaceX CEO Elon Musk and President Gwynne Shotwell are speaking at the AIAA propulsion conference.
At 4:00 PM EDT/1:00 PM PDT, Elon Musk will discuss “Getting to Mars”
At 5:00 PM EDT/2:00 PM PDT Gwynne Shotwell will participate in the Commercial Space Panel
Both should be webcast live at: http://www.livestream.com/
If you miss them live, AIAA says videos may be available for a limited time in the on-demand section at Livestream, then later at www.aiaa.org and/or the AIAA YouTube channel www.youtube.com/wwwAIAAorg.