No other event draws the number of elite researchers, innovators, and companies whose collective efforts push the frontiers of space and enable the building and maintaining of the important telescopes of the world. The 2012 conference, held in Amsterdam this year, will cover most of the relevant technological areas in astronomy.Telescopes and Systems + Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave + Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray + Ground-based and Airborne Telescopes + Optical and Infrared Interferometry + Ground-based and Airborne Instrumentation for Astronomy + Adaptive Optics Systems + Observatory Operations: Strategies, Processes, and Systems + Modeling, Systems Engineering, and Project Management for Astronomy + Modern Technologies in Space- and Ground-based Telescopes and Instrumentation + Software and Cyberinfrastructure for Astronomy + Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy + High Energy, Optical, and Infrared Detectors for Astronomy