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bacteria & microbes

Tall glacier face with layered ice wall meeting rocky terrain, with a person in bright-colored clothing at the base.
Posted inNews

Newly Discovered Algae May Speed Melting of Antarctic Ice

by Andrew Chapman 9 May 20259 May 2025

Purple pigmentation in a diverse array of algae absorbs heat and creates a feedback loop responsible for 2% of total daily melting.

The gray surface of Enceladus with plumes of gas escaping from the surface into space
Posted inResearch Spotlights

Using Algorithms to Help Find Life on Icy Ocean Worlds

by Saima May Sidik 21 March 202521 March 2025

Scientists could use machine learning to analyze atmospheric samples in order to help identify microbes on frozen moons. They’re testing the concept using bottles of brine and smelly bacteria.

Photo of a river
Posted inEditors' Highlights

Carbon-Nutrient Ratios Drive Nitrate Removal in Mediterranean Streams

by Kyle Boodoo and Suzanne Tank 19 March 202519 March 2025

The type of organic matter, and ratio of nutrients to carbon, impact the ability of heterotrophic bacteria to effectively remove certain forms of nitrogen pollution (nitrate) from streams.

Photo of Mars' surface.
Posted inEditors' Highlights

Explaining Mars’ Mysteriously Magnetic Crust

by Sonia Tikoo 13 March 202513 March 2025

Fluid-rock interactions on ancient Mars may have produced abundant magnetic minerals that preserved unusually intense records of the planet’s now-extinct magnetic field.

People on a rubber raft collecting water samples from a brown lake
Posted inNews

Extreme Heat and Rain Turned These Arctic Lakes Brown

by Larissa G. Capella 3 March 20253 March 2025

Scientists are stunned by the changes in multiple Arctic lakes, all transforming in the same way.

A rice paddy, in which rows of higher-growing plants are separated by flooded sections
Posted inNews

Rice Paddies, Like Cows, Spew Methane. A New Variety Makes Them a Lot Less Gassy.

by Matt Simon 10 February 202510 February 2025

Rice plants are a big source of methane, an extremely potent greenhouse gas. Scientists just developed a strain that cuts those emissions by 70 percent.

A black smoker, shaped like a stone cylinder on the ocean floor, spews black smoke into the water.
Posted inNews

Arctic Hydrothermal Vents May Resemble Those on Enceladus

by Anna FitzGerald Guth 17 December 202417 December 2024

By studying hydrogen-rich vent sites on Earth, scientists could learn more about the hidden ocean of Saturn’s icy moon—one of our solar system’s likeliest candidates for harboring life beyond Earth.

The Chesapeake Bay as seen from Sandy Point in Maryland.
Posted inNews

Climate Change Is Driving Dangerous Bacteria Farther North

by Lauren Schneider 13 December 202413 December 2024

Satellite data could help address rising rates of vibriosis infections, often the result of eating undercooked seafood, along the East Coast of the United States.

Earth’s mid-ocean ridge system, shown in mostly blue and green.
Posted inNews

Mid-Ocean Ridges Could Be Dispersing Thermophilic Bacteria

by Miriam Bahagijo 12 December 202412 December 2024

Scientists suggest that two strains of endospores located more than 4,000 kilometers away from one another originated in the same place: along the Mid-Atlantic Ridge.

Photo of a muddy river.
Posted inEditors' Highlights

Physics and Biology as Likely Stream Bedfellows

Eric Davidson, president-elect of AGU by Eric Davidson 18 November 202415 November 2024

Streambeds are key sites for removal of nutrients and other contaminants through microbial processes, but are limited by diffusion, which can now be modeled from streambed physical properties.

Posts pagination

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Features from AGU Publications

Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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