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biogeochemistry

An illustration of a white, icy moon with deep valleys and plumes of water spraying into space from its southern hemisphere.
Posted inNews

Archaea Survived Enceladus-Like Conditions in Lab

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 29 October 202629 October 2026

Enceladus’s ocean is extremely alkaline and low on carbon dioxide, but one terrestrial extremophile made it work.

A person takes a knee in the middle of a thin layer of water, which stretches over part of a lake bed. Clouds are reflected on the water’s surface.
Posted inNews

The Secrets of Acid Salt Lakes

by Emily Gardner 23 October 202623 October 2026

These stunning bodies of water—saltier than seawater and nearly as acidic as lemon juice—can teach us more about where life can survive, on Earth and beyond.

A mottled red and blue surface with ridges, valleys, and cracks. The ridges sweep from top left to bottom right.
Posted inNews

Where Did Formaldehyde Rain Down on Mars? Almost Everywhere.

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 22 October 202622 October 2026

More formaldehyde rained down in places that were already wet and favorable for prebiotic chemistry.

Layers of ice in sand on Mars
Posted inOpinions

What We Could Lose by Trying to Make Mars Habitable

by Ari Koeppel, Lonneke Roelofs, Santiago Vrech, Alicia M. Rutledge and Martin Turbet 14 October 202627 October 2026

The rock, ice, and atmosphere of Mars hold a largely unread archive. Terraforming could erase it before the biggest scientific questions are answered.

A pool of hazy blue water, surrounded by a ring of darker sand, is seen on the seafloor.
Posted inResearch Spotlights

Briny “Death Pools” Hold Clues to Early Life

by Rebecca Dzombak 22 September 202622 September 2026

New evidence from the depths of the Red Sea supports the oxidation of manganese and iron as an engine for life in the earliest oceans.

Venus, looking very orange.
Posted inNews

Venusian Sulfur Clouds Might Not Be So Inhospitable After All

by Karthik Vinod 18 September 202618 September 2026

New research shows that peptides can fold into “omega loops” linked to biological functions, even in highly acidic environments.

A series of buildings, including several structures that appear to be smokestacks, are silhouetted against a brown sky. Dark clouds are stretched above the buildings.
Posted inResearch Spotlights

Volatile Organic Compounds Have Been Underestimated in the Carbon Cycle

by Rebecca Dzombak 16 September 202616 September 2026

Better tracking of these reactive compounds is essential for understanding how the atmosphere and terrestrial biosphere interact.

Diatom chains within glass shells shaped like toothpicks
Posted inNews

Wastewater Can Take Harmful Algal Blooms from Bad to Worse

by Lisa S. Gardiner 8 September 20268 September 2026

By modeling toxic diatoms and coastal processes, scientists have discovered the degree to which nutrients from Southern California’s densely populated coast affect these blooms.

Photo of ocean waves below a stormy sky.
Posted inEditors' Vox

How Bubbles Reshape Air-Sea Gas Exchange

by Yuanxu Dong 5 August 202610 August 2026

Bubbles produced by breaking waves provide an important but often overlooked pathway for exchanging carbon dioxide, oxygen, and other gases between the ocean and atmosphere.

A large white research vessel out at sea on a gray day.
Posted inResearch Spotlights

Typhoons Mix Up Bacteria and Biochemistry

by Rebecca Dzombak 10 July 20269 July 2026

After a typhoon surprised a research cruise, scientists took advantage of the unique sampling opportunity to reveal rapid changes in bacterioplankton communities and biogeochemical cycling.

Posts pagination

1 2 3 … 10 Older posts
Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

A Decade of Carbon Dioxide Data from Space Gets an Upgrade

30 October 202630 October 2026
Editors' Highlights

Connecting Radio Wave Disruption to “Hot” Charged Particles from Afar

30 October 202630 October 2026
Editors' Vox

Opening Access to Earth Observation Data for Disaster Mitigation

21 October 202620 October 2026
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