关于这张图
This is a composite image of Suomi NPP VIIRS Day/Night Band images show the bright and complex signature of the aurora borealis across southern Canada and the northern United States during the nighttime hours of September 8, 2015. Credit: NASA/Goddard/Suomi NPP/VIIRS/SSEC-RealEarth <b><a href="http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html" rel="nofollow">NASA image use policy.</a></b> <b><a href="http://www.nasa.gov/centers/goddard/home/index.html" rel="nofollow">NASA Goddard Space Flight Center</a></b> enables NASA’s mission through four scientific endeavors: Eart…
