Rocket launch preparation. Technicians preparing several balloons for use in an amateur rocket launch. These helium-filled balloons will be used to lift a rocket on its launch platform to around 35,000 metres up. The rocket will then automatically launch, reaching a height of some 80 kilometers. JP Aerospace, an amateur rocketry organization, which aims to place the first amateur object in orbit, is doing this project. Photographed in the Black Rock desert, Nevada, USA.