Astronomers may have witnessed a galaxy's #BlackHole delivery system in action! A new study using Chandra & Hubble shows how a large black hole may have been delivered to the spiral #galaxy NGC 4424 by another, smaller galaxy. More in the comments!
X-ray (Chandra): NASA, CXC, Swinburne Univ. of Technology/A. Graham et al.;
Optical/Infrared (Hubble): NASA, ESA, STScI
https://t.me/astronomy
