Free Astronomy Magazine

JULY-AUGUST 2022 A stronomers estimate that 100 million black holes roam among the stars in our Milky Way galaxy, but they have never conclusively identified an isolated black hole. Following six years of meticulous observations, the NASA/ ESA Hubble Space Telescope has, for the first time ever, provided direct evidence for a lone black hole drift- ing through interstellar space by a precise mass measurement of the phantom object. Until now, all black hole masses have been inferred sta- tistically or through interactions in The first direct evidence for an interstellar black hole by NASA/ESA Bethany Downer