Mercury. Image: NASA
Mercury
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NASA
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Mega Chad
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About 7,000 years ago, a vast lake spread hundreds of square kilometers across north-central Africa. Known to scientists as Lake Mega Chad, it covered more than 400,000 square kilometers at […]
Meteor shower from space
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Every January, bits of asteroid 2003 EH1 cross paths with Earth’s orbit to create a beautiful annual meteor shower: the Quadrantids. As the fragments collide with our atmosphere, they disintegrate […]
Sun
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Solar eruption
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Porpoise Bay, Antarctica
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The incredibly smooth surface of the sea ice indicates that it is topped with ample snow—possibly as much as tens of meters—which also drifted onto the berg’s left side. “That […]
Terkezi Oasis, Chad
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A series of rocky outcroppings are a prominent feature of this Sahara Desert landscape near the Terkezi Oasis in the country of Chad. This image was acquired by Landsat 7 on […]
Lake Natron, Tanzania
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Lake Natron is a salt or soda lake in Arusha Region in Tanzania. It is in the Gregory Rift, which is the eastern branch of the East African Rift. The […]
Namib-Naukluft National Park, Namibia
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First Photo on the Moon
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