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New Study Maps Space Dust in 3-D – Lawrence Berkeley National Laboratory

“The light from those distant galaxies travels for billions of years before we see it,” according to Schlafly, “but in the last thousand years of its journey toward us a few percent of that light is absorbed and scattered by dust in our own galaxy. Just as airborne dust in Earth’s sky contributes to the atmospheric haze that gives us brilliant oranges and reds in sunrises and sunsets, dust can also make distant galaxies and other space objects appear redder in the sky, distorting their distance and in some cases concealing them.

New Study Maps Space Dust in 3-D – Lawrence Berkeley National Laboratory