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Ask the expert
Why Mountains Rise and Fall : Earth's Ever-Changing Surface
How does the movement of continents shape the Earth's surface and affect mountain height?
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Science news
Racing Toward an Ice-Free Arctic: The Melt Is Outpacing Expectations
Rapid melting may leave the Arctic nearly ice-free in summer within years
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Science news
Deep Mantle Currents Shape Earth's Surface
The breakup of an ancient supercontinent sent slow-moving waves beneath the continents, shaping their surface.
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Science news
How (Almost All) Life Went Extinct
A new study claims that El Niño contributed to the great Permian-Triassic extinction, 250 million years ago.
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Science news
Glaciers Melt – Days Grow Longer
Polar ice melt and rising sea levels slow down Earth's rotation and change the length of a day.
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Science news
The Enigma of Dark Oxygen
Natural metal nodules emit oxygen in the dark depths of the ocean, challenging the assumption that oxygen production requires photosynthesis.
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Science Panorama
The Globe as a Model: Revisiting the Equinox
The autumnal equinox is ideal for exploring ancient astronomical concepts
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Science news
Farewell to the Environmental Satellite: This Week in Space
Israeli environmental satellite ends operations, SpaceX back in action, Boeing delayed, and an upcoming nova event.
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