text:   Black Hole",2,"['A new paper about the proper motion of the supermassive black hole at the center for our Galaxy: \n\n<LINK>\n\nThe observations span 18 years now and limit the motion to &lt; 1 km/s. This corresponds to a lower limit of the mass of 1 Million Solar masses (Msol) (1/2)', 'Combined with the size from EHT observations, this gives a density that is within a factor of 3 of the of the General Relativity limit for a black hole. \nFurthermore, intermediate mass black holes more massive than 30,000 Msol between 0.003 and 0.1 pc are excluded. (2/2)']",20,01,532