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life as we know it

A droplet of water rich in microorganisms clings to a copper-rich stalactite at the Kipuka Kanohina Cave Preserve in Hawaii.
Posted inScience Updates

What Would Earth Be Like Without Life?

by M. A. Chan, H. J. Cleaves II and P. J. Boston 12 March 20185 January 2022

Workshop on a Cosmic Perspective of Earth: A Planet Permeated and Shaped by Life—Implications for Astrobiology; Tokyo, Japan, 13–15 September 2017

Irradiation-induced color changes in sodium chloride suggest Europa’s ocean waters are mixing with surface waters—a sign of the moon’s potential to support life
Posted inResearch Spotlights

Seeking Salt That Surfaces from Europa’s Hidden Ocean

by Sarah Stanley 31 January 20187 March 2022

Irradiation-induced color changes in sodium chloride could reveal whether it came from ocean water mixing with surface water, a key component of the moon’s potential to support life.

An artist’s conception of a portable Martian greenhouse currently being developed at NASA.
Posted inNews

Tests Indicate Which Edible Plants Could Thrive on Mars

by Kimberly M. S. Cartier 12 January 201826 January 2022

An undergraduate experiment grew vegetables and herbs in simulated Martian soil under Mars-like reduced daylight. The tasty results suggest that Mars colonists could farm their own produce.

Posted inNews

Clues Found That Earth May Have a Thermostat Set to “Habitable”

by L. Joel 5 September 20175 January 2023

Weathering of rocks can control Earth’s temperature over geologic timescales, new geochemical data suggest.

Titan’s lake Ligeia Mare
Posted inNews

Could a Newfound Molecule on Titan Be a Building Block for Life?

by JoAnna Wendel 28 July 201711 January 2022

The discovery of vinyl cyanide in the atmosphere of Saturn’s moon Titan has huge implications for life—but not as we know it.

A researcher looks over the Greenland ice cap, a “frozen ocean.”
Posted inNews

New Instrument May Aid Search for Extraterrestrial Life

by JoAnna Wendel 10 May 201729 September 2021

For 2 weeks on the Greenland ice cap, scientists tested an instrument that might help us find life on icy moons with oceans beneath their crusts.

Plumes
Posted inNews

Hydrogen Molecules Hint at Habitability of Enceladus's Ocean

by JoAnna Wendel 13 April 201711 January 2022

Scientists suggest that the hydrogen could be evidence of hydrothermal activity on the ocean floor of Saturn's sixth largest moon.

A section of the rim of Ernutet crater, captured by NASA’s Dawn Spacecraft on 26 January.
Posted inNews

Scientists Spot Organic Molecules on Ceres

by JoAnna Wendel 16 February 201729 September 2021

The presence of organic material on Ceres raises new questions about its internal evolution and potential for hosting past or present life.

Europa lander
Posted inNews

New Report Details How NASA Could Land on Europa

by JoAnna Wendel 15 February 201717 January 2023

A team of scientists laid out extensive details about a hypothetical future landing mission to find life on Jupiter's moon.

Artist’s conception of the instrument mast for NASA's Mars 2020 rover.
Posted inScience Updates

Seeking Signs of Life and More: NASA’s Mars 2020 Mission

by K. A. Farley and K. H. Williford 11 January 201725 August 2022

The next Mars rover will be able to land near rugged terrain, giving scientists access to diverse landscapes. It will also cache core samples, a first step in the quest to return samples to Earth.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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