| The current day of the year is , and the current UT is :.
 Click on the image to view it at full size. |
Compare to: |
|---|---|
Active | |
Quiet | |
About the Images: The image was taken at ultraviolet wavelengths that are not directly visible to the human eye. The glow you see is from atomic oxygen atoms at altitudes between about 100 and 500 kilometers (60 to 300 miles). The intensity of the light is color-coded with dark red as lowest intensities and whitish yellow as the brightest intensities. | |
Image Credit: Images were acquired with the Earth Camera that is one of three cameras in the Visible Imaging System (VIS) which was designed and constructed at The University of Iowa. The VIS is one of twelve instruments on the Polar satellite of the NASA Goddard Space Flight Center. The Principal Investigator is Dr. L. A. Frank and the Instrument Scientist and Manager is Dr. John. B. Sigwarth. | |
Take me to the VIS/Polar Web Site
The source of this material is Windows to the Universe, at http://www.windows.ucar.edu/ at the University Corporation for Atmospheric Research (UCAR). © The Regents of the University of Michigan. Windows to the Universe® is a registered trademark of UCAR. All Rights Reserved. Site policies and disclaimer