Scientists have just made the highest-resolution observations yet from the surface of the Earth. In this episode of Chasing Starlight, ESO astronomer Suzanna Randall reveals how a pilot experiment using telescopes that are part of the Event Horizon Telescope (EHT) Collaboration was able to obtain the highest-resolution observations ever made from the ground. Thanks to these test observations, the EHT Collaboration estimates that, in the future, they will be able to make black hole images 50% more detailed than was possible before.