Category: News
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http://ift.tt/1Q8csrg via /r/SkyPorn http://ift.tt/24t5C7h via Blogger http://ift.tt/1n1WFj6
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via The Daily Galaxy –Great Discoveries Channel: Sci, Space, Tech http://ift.tt/1UoCMjU via Blogger http://ift.tt/1LiyyIG
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The distinctive blue bubble appearing to encircle WR 31a is a Wolf–Rayet nebula — an interstellar cloud of dust, hydrogen, helium and other gases. Created when speedy stellar winds interact with the outer layers of hydrogen ejected by Wolf–Rayet stars, these nebulae are frequently ring-shaped or spherical. via NASA http://ift.tt/1oEvGez…
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via The Daily Galaxy –Great Discoveries Channel: Sci, Space, Tech http://ift.tt/1OAuT3u via Blogger http://ift.tt/1Liyzw4