Shooting stars, or meteors, are bits of interplanetary material falling through Earth's atmosphere and heated to incandescence by friction. These objects are called meteoroids as they are hurtling through space, becoming meteors for the few seconds they streak across the sky and create glowing trails. Several meteors per hour can usually be seen on any given night. Sometimes the number increases dramatically - these events are termed meteor showers.
Note: This lithograph was revised in September 2013.
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