Due to the lapse in federal government funding, NASA is not updating this website.

Suggested Searches

The bottom of the image is black, a horizontal layer of color is seen in the image center. The color, from bottom up is red and orange, then white, giving way to a wide light blue color that fades into the black of space. The orange is labeled troposphere, white stratosphere, and blue upper atmosphere. The moon is also visible above the image center and includes a labeled halo around the bottom right edge of the moon.

A Halo Above the Horizon

A subtle arc, formed by the bending of light through high-altitude ice crystals, cradles the Moon above the darkened Earth.

Download