The Rexus/Bexus programme is a project of ESA, SSC and DLR that allows students from all ESA member states to perform experiments on a balloon and sounding rocket. In the latter, there are two rockets, each with 4 regular launch sites and one in the nose cone of the rocket. Thus, a total of 10 student teams will have the opportunity to have their experiment fly on a rocket in each round and thus conduct experiments in space-like conditions in microgravity. More information is available on the Rexus website.
In this video you can watch a very great talk from the Chaos Computer Congress 32C3 by panic and sev. Sev or Severin Haas was also a student in Jena and participated in the Rexus-LiME and Bexus-ARCA project.