Mars Science Laboratory (MSL) / Curiosity Rover Landing
The 7 minute landing of the Curiosity Rover that will happen on Aug 5th.
The amazing sequence for landing is demonstrated in this video: http://www.youtube.com/watch?v=pzqdoXwLBT8
Doors open at 9pm. "Screens in the Auditorium and Planetarium will display a non-stop live feed from NASA TV."