Speaker
Description
The Event Horizon Telescope (EHT) is a global mm-VLBI array (230 GHz) that captured the first images of two supermassive black holes, M87 and Sgr A* in 2017. Since then EHT has been expanding with the addition of several new telescopes, as well as a new observing frequency (345 GHz). During its typically annual campaign of ~1-2 weeks, EHT observes the horizon sources as well as a selection of other AGN, accompanied by significant multi-wavelength coverage from the ground and space. The state of the art now includes polarisation, giving insight into the magnetic field structures just outside the black holes, or in the inner jets. In this talk I will summarise some of our most exciting results in the context of questions relating to high-energy emission and particle acceleration. I will also give a perspective on the future, as EHT now moves into the dynamical regime, taking movies instead of snapshots, and the implications for multi-wavelength/multi-messenger connections, particularly CTAO.