Interferometry gave us a black gap’s occasion horizon, however that was within the radio. What can we accomplish with a brand new optical interferometer?
It’s arduous to think about, however it was solely 5 years in the past, in 2019, that humanity feasted our collective eyes on the primary direct picture of a black gap’s occasion horizon. Due to the strategy of very lengthy baseline interferometry and the facility of arrays of radio telescopes stitched collectively from all throughout the Earth, we have been in a position to resolve the occasion horizon of the black gap M87*, even though it’s a powerful 55 million light-years away.
