Today is launch day for IRIS the acronym for the Interface Region Imaging Spectrograph. IRIS will be launched out of Vandenburg Air Force Base. It’s not a ground launch; IRIS will be launched from an airborne platform on an Orbital Pegasus Rocket.
Dropped is a more accurate description, first Pegasus is dropped then the rocket ignited and it goes on its way. The drop, currently scheduled to happen 26 June 2013 at 7:27 PDT / 10:27 EDT or 27 June 2013 at 02:27 UTC at an altitude of 39,000 over the Pacific Ocean.
I would hope We should get to see some video of the launch. Hard to say since it will be dark, time will tell.