Tag Archives: Geophysics

Explaining Mars’ Patchy Aurora

The solar wind’s orientation relative to Mars’ magnetic-field lines changes as the planet rotates, creating conditions ripe for magnetic reconnection. Continue reading

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An Unexpected Discovery at the Air-Water Interface

New research reveals a surprising chemical pathway for a CO2 reaction important in many geological and biological processes. Continue reading

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Solid-State Physicist Turns to Rocks

An archaeology-focused sabbatical prompted semiconductor physicist Kristin Poduska to ask questions about how the environment impacts the chemical and structural properties of natural materials. Continue reading

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Martian Impacts Seen and Heard

Linking acoustic and seismic signals from meteorite strikes to orbiter images is a step toward mapping the planet’s interior. Continue reading

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Webb Telescope Searches for Exoplanet Atmospheres

The recent detection of CO2 around a distant Jupiter-like planet spurs
optimism for detecting atmospheric gases around Earth-like planets
orbiting faraway stars. Continue reading

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Icy Resonance

Ice sheets amplify clues from Iceland’s hidden volcanoes. Continue reading

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Unusual Flow

A transparent rock experiment shows how stretchy molecules kick up eddies. Continue reading

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Predicting the Shape of Pointy-Rock Forests

The shape and curvature evolution of dissolving rocks can be predicted using a new theory. Continue reading

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Linking Glaciers on Earth to the Climate on Mars

Geophysicist Jack Holt explains how Earth’s debris-covered glaciers can teach us about the climate history of Mars. Continue reading

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Ancient lightning may have provided the phosphorus necessary for life

On early Earth, lightning strikes created glassy rocks that hosted abundant soluble minerals, which were rich in phosphorus, a vital ingredient in biomolecules. Continue reading

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