NASA's Hubble Finds Strong Evidence for Intermediate-Mass Black Hole in Omega Centauri - Hubble Space Telescope
- NASA's Hubble Finds Strong Evidence for Intermediate-Mass Black Hole in Omega Centauri Hubble Space Telescope
- Hubble Space Telescope finds closest massive black hole to Earth — a cosmic clue frozen in time Space.com
- Strongest "missing link" in black hole physics discovered at last Big Think
- Hubble finds evidence for rare black hole in Omega Centauri European Space Agency