One theory proposes these specific objects evolved from "primordial" bodies produced by the Big Bang; another proposes they originate from "quasi-stars" formed by collapsing hydrogen (10[1])clouds, while yet another posits they result from mergers between (10[1])"intermediate-mass" bodies. (10[1])These objects can emit huge amounts (10[1])of X-rays when friction causes infalling gas to be (10[1])superheated. (10[1])These objects (-5[1])emanate relativistic jets during the accretion of matter onto them, which creates highly luminous sources (-5[1])called AGNs. Very-long-baseline interferometry was used by the EHT project to form radio images of two of these objects named M87* (M “eighty-seven star”) (10[1])and Sagittarius A* (A “star”). These objects are much larger than their "stellar" counterparts, reaching up to billions of solar masses. For 10 points, name these enormous, infinitely-dense objects found at (10[2])the center of galaxies. ■END■