Horsehead nebula (Introduction)
by David Turell 
, Saturday, April 20, 2013, 15:20 (4031 days ago)
What a picture:-http://phys.org/news/2013-04-fresh-horsehead-nebula.html
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- Horsehead nebula -
David Turell,
2013-04-20, 15:20
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by David Turell , Saturday, April 20, 2013, 15:20 (4031 days ago)
What a picture:-http://phys.org/news/2013-04-fresh-horsehead-nebula.html
Complete thread: