Red Sun | Space Wallpaper
Wallpapers
published
This space wallpaper of the sun was taken on Aug. 14, 2013 from the European Space Operations Centre in Darmstadt, Germany. It was taken using a H-Alpha filter (a narrow band filter that lets through only those wavelengths that are very close to 656.28 nanometers, the Alpha emission band of hydrogen, an element that is abundant in the sun. The H-Alpha wavelength happens to be in the red part of the visible spectrum, which is why the sun appears very red in this image. This is something different from the red sun we see at sunrise and sunset. This image was released Aug. 14, 2013.
Sign up for the Live Science daily newsletter now
Get the world’s most fascinating discoveries delivered straight to your inbox.
Space.com is the premier source of space exploration, innovation and astronomy news, chronicling (and celebrating) humanity's ongoing expansion across the final frontier. We transport our visitors across the solar system and beyond through accessible, comprehensive coverage of the latest news and discoveries. For us, exploring space is as much about the journey as it is the destination.