Waiting for Black Hole


… due to gravitational lensing, no part of the disk could be hidden, even its rear side! And simple considerations about the relativistic rotation of the disk implied that a strong Doppler shift would cause a strong asymmetry of the apparent flux.

Live stream.

Real One

a black hole that belongs to

Messier 87 (also known as Virgo A or NGC 4486, generally abbreviated to M87) is a supergiant elliptical galaxy in the constellation Virgo. One of the most massive galaxies in the local Universe …

Disk looks thick/fat.