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Alaska’s Iconic Columbia Glacier Still Retreats
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Published September 10, 2024
The glacier’s Main Branch pulled away from a stabilizing rocky outcrop, while melting along the West Branch exposed “new gravelly real estate.”
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Laboring at Big Bend Tunnel
Published September 2, 2024
The setting for John Henry’s legendary contest with a steam-powered drill may have been this tunnel through Big Bend Mountain in West Virginia.
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Aftermath of a Landslide-Triggered Tsunami
Published August 28, 2024
The 56-foot wave in Pedersen Lagoon, on Alaska’s Kenai Peninsula, damaged trees and left a mark on the landscape.
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ARCSIX Analyzes Arctic Sea Ice Loss
Published August 26, 2024
In summer 2024, NASA scientists went to northern Greenland to study how clouds and atmospheric particles may be contributing to the ongoing loss of multiyear sea ice.
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Chilcotin River’s Landslide Lake Begins Draining
Published August 15, 2024
Erosion-resistant glacial sediment in the landslide deposit limited the extent of flooding downstream.
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Landslide Dams the Chilcotin River
Published August 6, 2024
Debris from a landslide in British Columbia blocked the river’s flow for several days before water found a way through.
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Bryce Canyon at Night
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Published July 27, 2024
Visitors to this national park in southern Utah can witness geologic landforms by day and a celestial light show by night.
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