Space is a big, lonely place, so it"s nice to know we have neighbors. The pictured Andromeda galaxy is our Milky Way"s closest neighbor—right next door at 2.5 million light-years away. Our cordial relationship with Andromeda goes back about 10 billion years to when both galaxies were still forming. But trouble is brewing: Andromeda is on a collision course with the Milky Way, due for impact in 4 billion years. This neighborhood"s about to get rough…
Hey neighbor, it s World Space Week!
Today in History
More Desktop Wallpapers:
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Let s get lost
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Shark Awareness Day
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Red fox in the Netherlands
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Even nature needs a backup plan…
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Glenfinnan Viaduct
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20 years later
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Vieste, Apulia, Italy
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Cecropia leaf and lobster claw petals in Mexico
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Happy Mother’s Day
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A Portuguese fort takes a star turn
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A winter light show
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A history of Vinland
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Balloons and camels are two ways to catch a ride here
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A bite of ancient history
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Great Backyard Bird Count
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Pride Month
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Smoking nights in Austria
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Assembling the Smithsonian
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Hey, don t you guys have somewhere to be?
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Native American Heritage Day
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Celebrating migrations
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The smoke before the bonfire
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Travel Sunday: Sintra, Portugal
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Gateway to America
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Crescent Lake near Dunhuang, China
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Park of the Monsters, Bomarzo, Italy
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Happy Independence Day!
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Welcome to the Hoh
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A crested partridge
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Muniellos Nature Reserve