NASA Langley Research Center has released TetrUSS, its fluid dynamics and aerodynamics analysis software, for Mac OS X. “Originally developed for NASA internal applications, has gradually evolved into an efficient and versatile CFD tool used by engineers and scientists throughout the nation. TetrUSS has been employed in major NASA research programs such as High Speed Research / High Speed Civil Transport, Hyper-X, Abrupt Wing Stall, Mars Scout, Joint Strike Fighter, and many other smaller projects. The software is widely used in other government organizations, the aerospace industry, academia, and non-aerospace industries such as automotive, bio-medical, and civil engineering.” TetrUSS requires Mac OS X 10.2 (Jaguar) or later.