The German Aeronautical and Space Administration have their headquarters in Bremen, named Astrium, next to Bremen Airport. They are a part of the European space group EADS. The centre offers guided tours at weekends. Here visitors can see satellites being built and developed in the hangar. The International Space Station is built and added to here. Visitors will also see demonstrations of experiments carried out in space. To take a tour, visitors must report to the Tourist Information counter at Bremen airport.