Space telescopes, not affected by the blurring and absorption of Earth's atmosphere, have been key drivers of progress for modern astronomy. While space observations are carried out over the whole electromagnetic spectrum, imaging at infrared wavelengths, which is critically needed for a wide range of investigations, is one of the areas where the gain compared to ground is maximal. Orbiting telescopes, large or small, have been so far confined to complex missions run by government agencies. However, thanks to dramatic technological improvements, CubeSats represent a new opportunity to break the price and performance curve of traditional space missions, while retaining attractiveness as cutting-edge research platforms. This presentation will describe the SkyHopper project, the first CubeSat with a near-infrared telescope. The prime scientific goals are the discovery of potentially habitable Earth-size exoplanets transiting in front of nearby cool stars, and the identification of high-redshift Gamma Ray Bursts (GRB) afterglows. Nachdem Herr Dr. Greiner sein Physikstudium an der Universität Leipzig abgeschlossen hatte, begann er bereits seine Tätigkeiten im Raumfahrtsektor am Institute for Space Research in Berlin. Dort beschäftigte er sich mit kosmischer Strahlung und schloss seine Promotion im Jahr 1988 erfolgreich ab. Im Anschluss wechselte er vorerst zum Max-Planck-Institut für extraterrestrische Physik in Garching. Von 1997 – 2001 war Dr. Greiner am Astrophysical Institute of Potsdam tätig, bevor an der TU München habilitierte. Seit 2005 ist er wieder am MPE im Bereich der Hochenergie Astrophysik beschäftigt.