The first image of a black hole was of M87*, the supermassive monster at the center of the enormous elliptical galaxy M87.
The Event Horizon Telescope (EHT) captured the first image of a black hole, which is the supermassive black hole M87* located ...
So I've been familiar with the basics of polarization since forever, but I recently realized circular polarization is a mystery to me. I've heard of it in conjunction with eg satellite broadcasts, but ...