Back in 2019, the world was treated to the first-ever image of a black hole, which was originally captured in 2017. The feat was widely heralded as a leap forward for astrophysics, supporting Einstein's theory of relativity. Now, a team led by the Radboud University proposes sending instruments into space to estimate black hole parameters more accurately by an order of magnitude. The newest paper, led by Dr. Volodymyr Kudriashov, translates science goals into technical requirements and focuses on the instrumentation needed for the Event Horizon Imager, as the mission is called.