Called the “Great Dark Lane” by the astronomers who announced it, the dusty road twists in front of the bulge of the galaxy. “For the first time, we could map this dust lane at large scales, because our new infrared maps cover the whole central region of the Milky Way,” Dante Minniti, a researcher at Universidad Andres Bello in Chile and lead author of a study describing the findings, told Space.com by email. “It is very difficult to mapthe structure of our galaxy because we are inside, and it is very large and covered with dust clouds that are opaque in the optical,” Minniti said.
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