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Clear Days for Iceberg Spotting
The summer sky was unusually cloud-free when NASA's Aqua satellite passed over the Antarctic Peninsula.
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Flooding Along Australia's Fitzroy River
Rainfall from an ex-tropical cyclone raised the river to record-high levels, flooding and isolating nearby communities.
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Racing Dunes in Namibia
Tracking dunes with satellite images over years and decades reveals small dunes regularly popping up and passing larger crescent-shaped barchan dunes.
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Ridges and Valleys of the Zagros Mountains
This astronaut photograph illustrates the undulating geology of a segment of the mountain range in southern Iran.
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Thinning of the Northeast Greenland Ice Stream
Greenland's largest ice stream is expected to contribute more to sea level rise than models previously indicated.
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Atmospheric River Lashes California
The latest in a series of atmospheric rivers drenching the state was accompanied by hazardous winds and left thousands of people without power.
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Weather Whiplash
The configuration of the polar vortex may have played a role in unleashing bitter cold followed by record warmth in North America.
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