"Sodium Milky Way." This scene was captured at the Very Large Telescope (VLT) on Cerro Paranal, in Chile’s Atacama Desert, under exceptionally pure observing conditions where the boundary between Earth and sky feels almost seamless. The Milky Way stretches across the sky, with its dense central bulge rising prominently overhead. To the left, the Magellanic Clouds, two neighboring satellite galaxies, are visible to the naked eye from the Southern Hemisphere. Subtle airglow adds another layer to the scene, a natural emission produced by chemical reactions in the upper atmosphere at altitudes of 80 to 100 kilometers. In this image, it reveals a range of colors, with green tones on the left and warmer reddish hues toward the right. In the foreground stands the VLT, operated by the European Southern Observatory. Situated at 2,635 meters above sea level, the site benefits from extremely dry conditions, stable atmospheric layers, and minimal light pollution, resulting in more than 300 clear nights each year.…