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This artist’s depiction shows the Mars Rover on the surface of Mars. Because of precise information about Earth’s length of day and orientation, NASA was able to directly land the Rover on Mars.

When a Day is Not a Day

As the Earth turns, unlikely events can be a drag.

Feature Article

Dec. 28, 2020

After a rainstorm, a loader removes trash with high concentrations of plastic at the mouth of the Los Angeles River in Long Beach, California.

Wasting Away

Mapping stormwater runoff in Southern California helps keep toxins at bay.

Feature Article

Dec. 28, 2020

A Japanese home drifts in the Pacific Ocean a few days after the March 11, 2011, earthquake and tsunami in northeastern Japan.

Warnings from the Ionosphere

GPS may be able to pace tsunamis.

Feature Article

Dec. 28, 2020

Photograph of the Great Smoky Mountains

Volatile Trees

Forests fill the air with more than just a fresh scent.

Feature Article

Dec. 28, 2020

A plastic particle smaller than five millimeters (about a fifth of an inch) is defined as a microplastic, but many microplastics are too small to be seen with the naked eye.

Unwelcome Enrichment in the Arctic

Microscopic plastics infiltrate Arctic sea ice with unknown consequences for the ecosystem.

Feature Article

Dec. 28, 2020

A pressure ridge forms on the sea ice near Scott Base in Antarctica.

Unexpected Ice

Sea ice in the Southern Ocean defies predictions.

Feature Article

Dec. 28, 2020

Curved barchan dunes and a straight seif dune lie in the north polar region of Mars, where the first significant change to sand dunes was detected in 2008.

Unearthly Dunes

Slow-moving landforms in Alaska decipher the frigid surface of Mars.

Feature Article

Dec. 28, 2020

Malayan tapirs are primarily nocturnal, so camera traps usually catch them at night.

Trapping Tapirs

An endangered species emerges from the shadows.

Feature Article

Dec. 28, 2020

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