PoGO+, the light-weight Polarized Gamma-ray Observer, was launched Tuesday morning on 12 July at 03:17 UTC. The scientific gondola is carried by a balloon on its way to Canada, where it is expected to land in a few days. The experiment is designed to measure the polarization of soft gamma rays in the 25 keV - 80 keV energy range.
The PoGo+ project is a collaborative project between Swedish and Japanese scientific teams.
Read more about PoGO+