The windiest, coldest, driest and fifth-largest continent on Earth—Antarctica—was discovered in 1820. It is Earth"s southernmost continent and a pristine and forbidding wilderness, often referred to as the world"s last true frontier. From suspended clouds of ice crystals to a subglacial, iron oxide-rich lake that flows blood-red, this polar desert is full of natural wonders. Its massive ice sheet stores about 70% of the world"s fresh water. If it were to melt entirely, it could raise sea levels by over 200 feet, threatening low-lying regions worldwide. The infamous ozone layer hole is located above Antarctica, but thanks to global efforts, it is on track to close within the next 20 years.
Ross Sea, Antarctica
Today in History
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Sunlight turning silver to gold
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Mont-Saint-Michel, Normandy, France
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A flashy, frigid waterfowl
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The Wave, Vejle, Denmark
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Stretching to the sky
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Río Negro, Amazon basin, Brazil
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Holiday hues
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See-through cephalopod
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Vinh Hy Bay, Vietnam
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A grand view
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Amber Fort, Jaipur
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Paradise Cave, Phong Nha-Ke Bang National Park, Vietnam
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Northern hawk-owl, Canada
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Paralympic Games begin in Paris
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Crescent-tail bigeye fish, Great Barrier Reef, Australia
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Wooden path to Kennedy Lake, Vancouver Island, Canada
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Pretty in pink
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Bison grazingin Yellowstone National Park, Wyoming, United States
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Mount Sopris, Colorado
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The road less taken?
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Anniversary of the Stonewall Uprising
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Anza-Borrego Desert State Park, California, USA
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Jellyfish swimming in the Pacific, Guerrero, Mexico
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Grand Canyon National Park, Arizona, United States
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