![45th Launch Anniversary of the First European Interplanetary Space Satellite](http://www.imperial.ac.uk/news/image/featurenews2012/20163.jpg)
![shadow](http://www.imperial.ac.uk/assets/news/img/image_shadow_sidebar.png)
45th Launch Anniversary
45th Launch Anniversary of the First European Interplanetary Space Satellite
HEOS-1: First European spacecraft to reach interplanetary space - with almost half the scientific experiments provided by Imperial College London.