WHA_804TH
The Cygnus Loop nebula, taken by NASA's Galaxy Evolution Explorer. The nebula lies about 1,500 light-years away, and is a supernova remnant, left over from a massive stellar explosion that occurred between 5,000 to 8,000 years ago.
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- WHA_804TH.jpg
- Copyright
- World History Archive
- Image Size
- 4538x3851 / 3.4MB
- Contained in galleries
- Recently uploaded historical photos 3

