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What is the "shadow" that appears to go across the plane in a very irregular manner? Is there a local dust cloud obscuring parts of the main plane?
by theallan 13y ago
What is the "shadow" that appears to go across the plane in a very irregular manner? Is there a local dust cloud obscuring parts of the main plane?
- ds_ 13y agoIt's the Great Rift http://en.wikipedia.org/wiki/Great_Rift_(astronomy) http://en.wikipedia.org/wiki/Great_Rift_(astronomy)