New observations of the galaxy Messier 101 have yielded the discovery of an unusual black hole that can sustain a hugely voracious appetite while consuming material in an efficient and tidy manner – something previously thought impossible. This image shows ULX-1 near a spiral arm of the galaxy Messier 101. Image credit: Chandra X-ray Observatory / Spitzer Satellite / Hubble Space Telescope / GALEX Satellite. Messier 101 (M101), also known as...