Credit: Copyright: Exolaunch GmbH, SpaceX It will be used to investigate new nanomaterials under the extreme conditions of space, to test systems for converting the sun's heat into electricity and to precisely measure the residual atmosphere around the satellite. SOMP2b will begin its journey around the Earth at an altitude of 500 km - slightly higher than the ISS space station. It will orbit the Earth in a special polar, sun-synchronous orbit, always flying over the TU Dresden ground station at approximately the same time of day and sending measurement data. SOMP2b is a follow-up satellite to SOMP2, a nanosatellite jointly developed by students, PhD candidates and scientists from TU Dresden's Faculty of Mechanical Science and Engineering. "SOMP2b" stands for Student On-Orbit Measurement Project Number 2b. It is 20 cm x10 cm x10 cm in size and weighs a little less than 2 kilograms. SOMP2b will orbit the Earth so fast that it will see sunrise and sunset 16 times a day. This will be accompanied by extreme temperature changes and will be particularly challenging for the materials and electronics. Particle radiation from space, low pressures, and the residual particles in the atmosphere surrounding SOMP2b at high velocities put additional stress on the nanosatellite.