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Ice re-grows in a lead between two sea ice floes in the Beaufort Sea, Arctic Ocean, in March 2013.

Signs of Snow

Aircraft help probe the surface of Arctic sea ice.
Feature Article
Dec. 28, 2020
Pacific bluefin tuna are prodigious swimmers, able to cross the Pacific Ocean in less than a month.

Shadowing the Tuna Boats

Logbooks, satellites, and game theory help steward tuna in the Pacific.
Feature Article
Dec. 28, 2020
In Naruto, Japan, a boundary between different water masses appears as a sliver of still water beyond turbulent waters.

Salt of the Sea

Researchers study the recipe for salt, currents, and climate.
Feature Article
Dec. 28, 2020
Laser tracking hones in on dangerous space debris.

Rubble Trouble

Laser tracking hones in on dangerous space debris.
Feature Article
Dec. 28, 2020
Many locations north of the equator, such as Guyana, tend to receive more rain than locations in the southern tropics. (Courtesy T. Rampersad)

Rooting Out Rainfall

Polar water fuels off-kilter rainfall in the tropics.
Feature Article
Dec. 28, 2020
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