|   | 
Credit & Copyright: Chris Cook   
   
   
Explanation:
Very recognizable stars of the northern   
sky are a backdrop for calm waters in this moonlit sea and skyscape   
off Cape Cod, Massachusetts.   
   
Taken   
on September 7, the photo also records a colorful display of   
northern lights or   
aurora   
borealis triggered by a severe geomagnetic storm.   
   
Visible   
crossing the Sun, the giant solar active   
region responsible, AR 2673, is much larger than planet Earth.   
   
It has produced   
the strongest flare of the current solar cycle and    
and the Earth-directed coronal mass ejection   
in the last few days.   
   
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: aurora borealis
Publications with words: aurora borealis
See also:
