Sagittarius A* has been seen by human eyes with an "image produced by a global research team called the Event Horizon Telescope (EHT) Collaboration" according to the European Southern Observatory. The black hole lies 27,000 light-years away and has a mass about 4 million times the Sun’s mass.


Credit: Space.com | footage courtesy: ESO/L. Calçada, N. Risinger, DSS, VISTA, VVV Survey/D. Minniti DSS, Nogueras-Lara et al., Schoedel, NACO, GRAVITY Collaboration | edited by Steve Spaleta