National Geographic : 1939 Jul
() N ational UIeographic society raining uy .n ari es iLininger, IN. rt. AN ECLIPSE OF THE SUN BY THE EARTH, WHICH WE CAN NEVER SEE, WOULD BE VISIBLE TO AMAN ON THE MOON Sunlight shining through the Earth's atmosphere from behind forms a red ring around our planet. Streamers ofthe Sun's corona show, at right, where the Sun is about to reappear. The luminous cloud is the "zodiacal light," believed to be reflected from small particles surrounding the Sun. Continents on the Earth and the north polar ice cap are faintly illuminated by moonlight. In the foreground isthe Moon landscape (Plate I).