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NASA's Hubble Finds More Black Holes than Expected in the …
NASA's Hubble Finds Strong Evidence for Intermediate-Mass Black Hole …
NASA's Hubble, Chandra Find Supermassive Black Hole Duo
Hubble Space Telescope finds closest massive black hole to …
NASA’s Hubble, Chandra Find Supermassive Black Hole Duo
Two NASA telescopes capture closest pair of supermassive black holes …
NASA's Hubble Finds More Black Holes than Expected in the …
Hubble finds more black holes than expected in the early Universe
Hubble finds strong evidence for intermediate-mass black hole in …
Hubble Space Telescope finds elusive black hole in star cluster - NPR