We"ve reached perihelion! Two weeks after winter solstice the Earth"s orbit is closer to the sun than at any other time of year—a result of the Earth"s elliptical orbit. You may think, "If we"re so close to the sun, why can"t I feel the heat?" Well, that"s because we"re only receiving about 7% more solar energy than normal, which doesn"t really have much impact on the weather.
Earth at Perihelion
Today in History
More Desktop Wallpapers:
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International Day for the Conservation of the Mangrove Ecosystem
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Looking down on the Otter
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At the shore of an inland sea
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The perfect canvas for an ancient text
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Unearthing a queen s lost tale
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The eloquence of elephants
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National Aviation Day
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J.R.R. Tolkien Day
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Celebrating World Olive Tree Day
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Edinburgh festivals
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It s time to fall back
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Salmon migration in full swing
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Belted Galloway cows
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Nuwara Eliya, Sri Lanka
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Celebrating sea otters
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A day to take a moment
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Bathing in the light of Pride
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A narrow passage
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Purple crocus flowers, Seven Rila Lakes, Bulgaria
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Turning darkness into light
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Bobbing for crab apples
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Boundary Waters Canoe Area Wilderness
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The tallest animal in the world on the longest day of the year
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Three cheers for polar bears!
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Porto, Portugal
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Giant kelp in the Channel Islands National Marine Sanctuary
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Lake Tyrrell, Victoria, Australia
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World Meerkat Day
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Leaves of Grass
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A dreamy start to the Year of the Pig
Bing Wallpaper Gallery

