Our universe- nebulae
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Our universe- Hubble tricks (Introduction)
http://blogs.scientificamerican.com/basic-space/2011/10/31/spooky-nebulae-ghosts-snakes...
Gorgeous pictures, thanks to Hubble
Cosmologists' tricks using hubble and galaxy lensing
http://www.physorg.com/news/2011-11-hubble-disc-black-hole.html
