"On Wednesday, June 26, NASA's newest mission, the Interface Region Imaging Spectrograph or IRIS, will launch from Vandenberg Air Force Base in California. IRIS will take flight using a Pegasus XL rocket, carried aloft by an Orbital Sciences L-1011 aircraft from Vandenberg. This exciting launch will broadcast live at the NASA Ames Visitor Center at NASA's Ames Research Center, Moffett Field, Calif.
Registrations for attendance are available now!
Tickets are free and are first-come, first-serve. Space is limited and only ticketed guests will be admitted."