QB50 is an international network of CubeSats for multi-point, in-situ measurements in the lower thermosphere and re-entry research. This EU project is managed by the von Karman Institute (Rhode-Saint-Genèse, Belgium).

36 CubeSats have been launched into orbit in 2017. Their positions, data, and detailed information can be found on the QB50 Display, Processing and Archiving Center.