References
Credit: ESA/Hubble, NASA, ESO, M. Kornmesser
Credit: NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration
Credit: EHT Collaboration
Credit: NASA/ESO, J. Alves (Calar Alto, Spain), and B. Vandame and Y. Beletski (ESO)