A brilliant twilight glow signals the ending of another day of measurements at
Mauna Loa Observatory. The red twilight is caused by Asian dust, which forms
layers that are visible in the twilight glow.
Image ID: wea03462, NOAA's National Weather Service (NWS) Collection Location: Hawaii, Mauna Loa Photo Date: 2006 May 29 Photographer: Forrest M. Mims III