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How do scientists know there is a central black hole in almost every galaxy?
Telescopes and Equipment
Optical Supports Versatile Mirror Cell
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Tele Vue Optics Delos EDL-14.0mm eyepiece
Telescopes and Equipment
Astrolaugh.com “Life is looking up” T-shirt
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Software Bisque Paramount MX Robotic Telescope Mount
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Orion Safety Film Solar Filters
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Meade LX600
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This week in pictures: August 18–24, 2012
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This week in pictures: August 11-17, 2012
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Science
Episode 18: Black holes
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The week in pictures: August 4–10, 2012
Cosmology
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Science
“Cry” of a shredded star heralds a new era for testing relativity
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