Historical data on beavers’ Arctic expansion are lacking, but tree rings are shedding light on the timeline.
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Pay Dirt: How Colonialism Left Its Mark on the Soil of the American Southwest
An alpine lake holds traces of how Spanish conquistadors kicked up dust as they colonized the Southwest.
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Fragmented Forests Sequester Less Carbon
New research has revealed that larger, unified forests store more carbon than the same area of fragmented patches.
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Oddball Moon Might Be a Neptune Original After All
Infrared observations of Nereid hint that it might have formed in orbit around Neptune, unlike most of the planet’s other satellites.
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Iceberg Scours Reveal Ancient Wind Patterns
Scour marks left by icebergs that ran aground thousands of years ago record the winds blowing off the Laurentide Ice Sheet.
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Climate Extremes May Be Reshaping Monkeys’ Social Structures
Large groups have their pros and cons. But a changing climate may push them off balance.
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What Tires Leave Behind Can Become Toxic Fish Food
Tire particles might seem tasty, if you’re a fish—but a new study shows how this pervasive microplastic can affect growth and behavior in marine species.
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A Hot Jupiter’s Cloudy Mornings and Clear Evenings Provide Clues to Its Chemistry
An improved weather forecast for an exoplanet 700 light-years away has revealed new details about its true chemical composition, clarifying more than a decade of blurry data.
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Trekking Tourism Leaves a Microplastic Footprint in a High Himalayan Lake
Plastic pollution may ripple downstream, threatening the human and wildlife communities that depend on glacier-fed waters.
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How Einstein’s Lost Theory Could Help Us Find Minerals
New claims challenge inconsistencies in one of the foundational principles of physics. What could this mean for geophysics and Earth science applications?