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bacteria & microbes

Illustration of the interstellar object ‘Oumuamua shedding dust while hurtling toward the distant Sun
Posted inNews

Interstellar Visitors Could Export Terrestrial Life to Other Stars

Nola Taylor Redd, Science Writer by Nola Taylor Tillman 22 January 20204 January 2023

A handful of interstellar objects and long-period comets could have scooped up microorganisms from Earth and carried them to worlds around other stars.

Swirls of photosynthetic algae thrive in the Arabian Sea in February 2015.
Posted inResearch Spotlights

Anaerobic Activity Is a Big Contributor in Marine “Dead Zones”

Sarah Stanley, Science Writer by Sarah Stanley 17 January 20202 March 2023

Climate models that do not account for anaerobic microbial activity may underestimate future expansion of oxygen-depleted waters.

The remotely operated vehicle Hercules
Posted inResearch Spotlights

Investigating Rates of Microbial Methane Munching in the Ocean

Sarah Stanley, Science Writer by Sarah Stanley 16 January 202018 May 2022

Analyses of microbial activity in seawater samples help clarify the fate of methane released from the seafloor.

CISME devices attached to living coral and a community of turf algae growing on dead coral
Posted inNews

Dead Reefs Keep Calcifying but Only by Day

by J. Oetting 24 December 20196 March 2023

A new measurement technique has revealed that turf algae communities colonizing dead reefs have a dual role, adding new mineral material to the reefs during the day and taking it away at night.

Close-up view of Sargassum natans, a seaweed commonly found in the Gulf of Mexico
Posted inResearch Spotlights

Sunlight Stimulates Brown Algae to Release Organic Carbon

Sarah Stanley, Science Writer by Sarah Stanley 2 December 20194 January 2024

Sargassum and other brown algae might be an underappreciated contributor of organic compounds called polyphenols to the open ocean.

Illustration of segmented, green cyanobacteria
Posted inNews

Did Bacterial Enzymes Cap the Oxygen in Early Earth’s Atmosphere?

Sarah Derouin, Science Writer by Sarah Derouin 25 September 201917 November 2021

A new theory suggests that nitrogenase from cyanobacteria could be the reason oxygen levels remained low after the Great Oxidation Event.

A field of penitentes
Posted inNews

Microbes Spotted on Blades of Ice High in the Andes

Katherine Kornei, Science Writer by Katherine Kornei 15 August 201912 April 2022

Researchers discover microbial life on ice spires known as penitentes on the arid, sunlight-blasted upper reaches of Llullaillaco, one of the best earthly analogues for Mars.

Photo of a man in a lab coat holding a soil core
Posted inNews

New Tool Reveals That Soils Are Teeming with Active Microbes

Sarah Derouin, Science Writer by Sarah Derouin 6 August 201931 January 2023

BONCAT, a new type of amino acid tagging, highlights and categorizes active soil microbes in situ.

Close-up photo of tan sandstone with gray splotches
Posted inNews

Paleontologists Peer Inside Billion-Year-Old Cells

Hannah Thomasy, Science Writer by Hannah Thomasy 6 August 201922 February 2022

Scientists have discovered the fossilized remains of Precambrian cells extraordinarily preserved with the rare earth element phosphates monazite and xenotime.

Photograph of biogeochemist Jordon Hemingway collecting a sediment sample from the Thjórsá River in southern Iceland
Posted inNews

The Jail That Keeps Oxygen in the Air

Lucas Joel by L. Joel 25 July 201922 February 2022

Oxygen shouldn’t be in the air we breathe. But it is, and the reason why is almost criminal.

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Features from AGU Publications

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Managed Agriculture Hinders Predictability of Critical Zone Features

1 May 20261 May 2026
Editors' Vox

Hydrothermal Heat Flow as a Window into Subsurface Arc Magmas

28 April 202628 April 2026
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