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- Sun Dec 15, 2013 7:10 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Gibbous Europa (2013 Dec 15)
- Replies: 30
- Views: 22379
Re: APOD: Gibbous Europa (2013 Dec 15)
Are there any thoughts in relation to the square structure below centre in the middle of the picture?