Sea Ice
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Nearly 50 years ago, the first Landsat satellite captured the rare sight of Mid-Atlantic waterways frozen over.
Icebreakers play a critical role in delivering supplies to America's largest research base in Antarctica.
Sea ice around the southernmost continent hit one of its lowest seasonal highs since the start of the satellite record.
After a long, turbulent journey, Antarctic Iceberg A-23A is signaling its demise as it floats in the South Atlantic.
Satellite data show that Arctic sea ice likely reached its annual minimum extent on September 10, 2025.
Iceberg A-23A continued to lose sizable pieces of ice during the 2025 austral winter, but it remained the planet’s largest…
The striking cloud formation developed over Arctic waters north of Siberia in July 2025 as frigid air met warmer open…
In early July 2025, around halfway through the island’s annual melting season, blue meltwater ponds dotted the western side of…
Sea ice in the gulf, the gateway to the Northwest Passage, is fracturing and drifting westward into the Beaufort Sea.
