“The Extreme Ultraviolet imager (EUV) instrument on board IMAGE captured this picture of the ultraviolet glow from relatively cold plasma surrounding our planet. A hook-shaped “tail” of plasma, near the top-left, streams toward the Sun. The small, faint circle near the center of the image traces ultraviolet radiation from aurora borealis.”

“The Extreme Ultraviolet imager (EUV) instrument on board IMAGE captured this picture of the ultraviolet glow from relatively cold plasma surrounding our planet. A hook-shaped “tail” of plasma, near the top-left, streams toward the Sun. The small, faint circle near the center of the image traces ultraviolet radiation from aurora borealis.”