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The April 2010 El Mayor-Cucapah earthquake revealed a previously undiscovered fault in the desert of Baja California, Mexico.

Baja's Fault

Before and after images trace an earthquake's surprise.
Feature Article
Dec. 27, 2020
The Atchafalaya River delta meets the Gulf of Mexico.

A Tale of Two Rivers

Complex structures keep the Mississippi River out of the Atchafalaya, for now.
Feature Article
Dec. 27, 2020
This view along Steensby Glacier in northern Greenland was seen during an Operation IceBridge survey flight on April 26, 2013.

A Submarine Retreat

New maps get to the bottom of Greenland’s outlet glaciers.
Feature Article
Dec. 27, 2020
Mnemiopsis leidyi is a species of ctenophore, or comb jelly, that is native to the western Atlantic Ocean and invasive in many European seas.

A Spread of Green

People and heat spread north into Arctic permafrost.
Feature Article
Dec. 27, 2020
The Clouds and the Earth’s Radiant Energy System (CERES) Ocean Validation Experiment (COVE) lighthouse site lies fifteen miles east of Chesapeake Bay, in the Atlantic Ocean

A Speck on the Ocean

A lonely platform at sea helps balance Earth's energy budget.
Feature Article
Dec. 27, 2020
An artistic rendering shows that Earth’s rotation has dragged space-time with it.

A Snag in Space-Time

Astrophysics use Earth science satellites to explore general relativity.
Feature Article
Dec. 27, 2020
Vehicles emit many of the chemicals that cause Denver’s brown cloud of air pollution

A Rising Problem

Tackling Denver's ozone requires looking high and low.
Feature Article
Dec. 27, 2020
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