Imaging X-ray Polarimetry Explorer, commonly known as IXPE or SMEX-14, is a space observatory with three identical telescopes designed to measure the polarization of cosmic X-rays of black holes, neutron stars, and pulsars. From Wikipedia
Groundbreaking observations of BL Lacertae reveal Compton scattering as the mechanism behind X-ray production in blazar jets, with findings now available as a preprint and set for journal publication.
