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Hello good day http://levitra-levitra.in.net/ levitra coupon Using the NASA/ESA Hubble Space Telescope and the European Southern Observatory's New Technology Telescope, astronomers have explored more than 100 planetary nebulae in the central bulge of the Milky Way galaxy. And what they've learned about butterfly-shaped planetary nebulae is surprising. |
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2019-09-17 05:19:07 |
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