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life as we know it

Perspective looking upward from the base of a large tree
Posted inFeatures

Critical Zone Science Comes of Age

by P. Waldron 24 September 202022 March 2022

The developing field, which unites Earth scientists to examine the planet’s surface as a single, unified entity, is unraveling the complex, interconnected processes that support life on Earth.

Selfie taken by the Curiosity rover at the top of Vera Rubin ridge
Posted inEditors' Vox

Curiosity Solves the Mystery of Gale Crater’s Hematite Ridge

by A. Deanne Rogers, M. Schmidt and A. Fraeman 31 July 20203 January 2023

A new special issue of JGR: Planets details the water-rich history of a distinctive geomorphic feature on Mars dubbed Vera Rubin ridge, as investigated by the Curiosity rover.

Scientists take spectrometric readings at a rock outcrop in Western Australia
Posted inFeatures

Mars 2020 Team Using Australian Rocks in Search for Life on Mars

by A. J. Brown, C. E. Viviano and T. A. Goudge 2 July 202022 September 2022

Scientists are investigating evidence of ancient terrestrial microbes preserved in Australia as well as mineral maps derived from Mars orbiter data to shed light on how to search for life on Mars.

Drill rig in water
Posted inNews

Chicxulub Impact Crater Hosted a Long-Lived Hydrothermal System

by Katherine Kornei 30 June 20207 March 2022

Chemical and mineralogical evidence of fluid flow—potentially conducive to microscopic life—was revealed in rock cores extracted from the crater’s “peak ring.”

Diagram of Venus’s possible climate history
Posted inResearch Spotlights

How Long Was Venus Habitable?

by Kate Wheeling 8 May 202010 November 2021

Climate simulations of Venus’s history could provide insights into the habitability of Earth and of exoplanets.

Figure showing whether assemblages containing quartz, talc, and carbonate can be produced from an oxidized hydrous rocky core under plausible conditions for Enceladus.
Posted inEditors' Highlights

The Freshest Mineral Water in the Solar System

by A. Dombard 24 March 202022 December 2021

The water-rich plumes erupting from Saturn’s moon Enceladus show the chemical signs of water-rock interactions deep within the moon, further implicating Enceladus as a potential habitat for life.

Researchers hold up petri dish of cultured fungi
Posted inNews

Microbes Discovered Hanging Out in the Ocean’s Crust

by Jenessa Duncombe 11 March 202010 November 2021

“The lower ocean crust is one of the last frontiers of the exploration for life on Earth.”

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

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.

Aerial photo of sea ice extending to the horizon
Posted inFeatures

Three Times Tectonics Changed the Climate

by Javier Barbuzano 22 November 20199 December 2022

Fifty years after the birth of modern plate tectonics theory, a group of researchers highlights three key examples of how our planet’s shape-shifting outer layer has altered our climate.

Sea spider
Posted inGeoFIZZ

Extreme Life and Where to Find It

by Kimberly M. S. Cartier 6 September 201929 September 2021

Life finds a way in the most extreme environments on Earth and sparks the imagination about far-off places where we may yet find it.

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Features from AGU Journals

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Earth’s Future
“How to Build a Climate-Resilient Water Supply”
By Rachel Fritts

EDITORS' HIGHLIGHTS
AGU Advances
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By Sarah Kang

EDITORS' VOX
Reviews of Geophysics
“Rare and Revealing: Radiocarbon in Service of Paleoceanography”
By Luke C. Skinner and Edouard Bard

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