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Black holes photobomb Andromeda Galaxy

Black hole pair in Andromeda Galaxy
A combination of X-ray and optical imagery shows the black hole pair known as J0045+41 glowing amid the much closer stars of the Andromeda Galaxy. (X-ray: NASA / CXC / UW / Dorn-Wallenstein et al. Optical: NASA / ESA / J. Dalcanton et al. and R. Gendler)

It turns out that even galaxies can be photobombed.

Imagery from NASA’s Chandra X-ray Observatory and ground-based telescopes reveal what researchers say could be the closest-orbiting pair of supermassive black holes ever seen.

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By Alan Boyle

Mastermind of Cosmic Log, contributing editor at GeekWire, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.

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