... Credit: D. Malin ( AAO ), AATB Explanation: Sometimes the sky itself seems to glow. ... If the glow appears as a faint band of light running across the whole sky , you are probably seeing the combined light from the billions of stars that compose our Milky Way Galaxy . But if the glow appears triangular and near the horizon , you might be seeing something called zodiacal light . ... Publications with keywords: ecliptic - zodiacal light . Publications with words: ecliptic - zodiacal light . ...