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Arctic river erosion linked to permafrost thaw

Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study. River migration is a common process in which a river's ...

Professor helps discover global gap in geologic record

About 34 million years ago, Earth began to cool dramatically, transforming the climate from greenhouse to icehouse and causing sea levels to fall. As more land was exposed to weathering forces, copious amounts of sediment ...

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Earth Sciences
Research suggests Earth's oldest continental crust is disintegrating
Earth Sciences
Arctic ozone reaches record high in positive step for climate
Earth Sciences
Why is Mount Everest so big? New research highlights a rogue river—but deeper forces are at work
Earth Sciences
Limestone and iron reveal puzzling extreme rain in Western Australia 100,000 years ago
Earth Sciences
Extensive afforestation and reforestation can brake global warming
Earth Sciences
Antarctic 'greening' at dramatic rate, satellite data show
Earth Sciences
Some microbes used poison gas in battle for iron in the Earth's early oceans, geomicrobiologists find
Earth Sciences
Research links El Niño to Atlantic weather a year later, could enhance long-range weather forecasting
Earth Sciences
Better monitoring of mining remediation: Selenium isotopes are good gauge of clean-up efforts
Earth Sciences
Climate lessons from the fall of a Pacific chiefdom
Earth Sciences
Capturing finer-scale topographic differences improves Earth system model capability to reproduce observations
Earth Sciences
Researchers investigate changes in atmospheric CO₂ levels between glacial and interglacial climates
Earth Sciences
Five-mile asteroid impact crater below Atlantic captured in 'exquisite' detail by seismic data
Earth Sciences
Geological surveys shed light on the formation mystery of Uruguay's amethyst geodes
Earth Sciences
Decades-long research reveals new understanding of how climate change may impact caches of Arctic soil carbon
Earth Sciences
Miami-Dade study questions reliability of land surface temperature for heat risk assessment
Earth Sciences
Mathematicians and climate researchers build new models for understanding polar sea ice
Earth Sciences
Study: Wildfires will make the land absorb much less carbon, even if warming is kept below 1.5°C
Earth Sciences
Climate change is causing algal blooms in Lake Superior for the first time in history
Earth Sciences
Closer look at New Jersey earthquake rupture could explain shaking reports

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Social Sciences
Carefully exposing children to more misinformation can make them better fact-checkers, study suggests
Plants & Animals
Researchers find dragonfly species with darker wings have evolved to withstand heat and attract partners
Mathematics
In double breakthrough, mathematician helps solve two long-standing problems
Archaeology
Fossils and fires: Insights into early modern human activity in the jungles of Southeast Asia
Planetary Sciences
Jupiter's Great Red Spot shows unexpected size changes
Paleontology & Fossils
Scientists recreate the head of this ancient 9-foot-long bug
Astronomy
Black hole destroys star, goes after another
Archaeology
Underwater caves yield clues that may help explain early expansion of Homo sapiens into Mediterranean islands
Plants & Animals
Scientists study elephant wrinkles to understand their purpose
Optics & Photonics
Quantum physicists tap into entanglement to improve the precision of optical atomic clocks
Other
Nobel Prize in chemistry honors 3 scientists who used AI to design proteins—life's building blocks
Astronomy
Team discovers three new magnetic and helium-enriched hot subdwarf stars
Astronomy
Astronomers race to capture image of exoplanet near star
Plants & Animals
Team uncovers the complex social life of rats, with potential implications for human psychiatry
Planetary Sciences
Hubble and New Horizons offer dual perspectives on Uranus to inform exoplanet research
Polymers
Low-temperature synthesis technique uses upcycled textile waste to create green, safe waterproof coating
Paleontology & Fossils
Earliest known fossil examples of predatory birds discovered: New species may have hunted like modern hawks and owls
Bio & Medicine
Making micelles more effective for dye and drug dispersion through well-defined core-shell structures
Cell & Microbiology
Detailed images of key protein complexes provide new insights into bacterial photosynthesis
Nanomaterials
Novel etching technique enhances absorptivity of powders for metal 3D-printing