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life as we know it

Six photomicrographs
Posted inEditors' Highlights

Abiotic Life and Energy on Water-Rich Rocky Celestial Bodies

by Susanne Straub 22 September 202222 September 2022

The discovery of tiny crystals of the iron-rich hydroxychloride kuliginite in New Caledonia provides new insights into the hydrogen production from mantle rocks and saline water.

Artistic impression of an orange-colored early Earth
Posted inNews

Early Life Learned to Love Oxygen Long Before It Was Cool

by Jennifer Schmidt 16 September 202221 February 2023

Laboratory experiments show that earthquakes may have helped early life evolve in an oxygen-free world.

Illustration of two spacecraft near the Moon, with Earth in the background.
Posted inNews

Moon’s Porosity Changes Cratering History, Study Says

Damond Benningfield, Science Writer by Damond Benningfield 3 August 20224 October 2022

Gravity field measurements from decade-old lunar orbiter provide a proxy for counting craters.

An artist’s impression of planet formation: Close to the star, dust particles grow into planetesimals and Earth-like planets. Farther away, gas accretes on planetary cores to create Jupiter-like giants.
Posted inNews

Krypton Isotopes Provide New Clues to Planets’ Pasts

by Carolyn Wilke 4 May 202217 March 2023

To trace how crucial ingredients for life arrived at Earth, scientists track noble gases. Now, improved methods are drawing new clues from krypton, the most cryptic of noble gases.

Lightning over water
Posted inResearch Spotlights

Lightning Had Difficulty Forming in Early Earth’s Atmosphere

by Rebecca Dzombak 8 April 202225 April 2022

Lightning could have sparked the beginnings of life, but the primordial atmosphere might have made it more difficult for lightning to initiate.

An impact on the surface of Mars creates a shower of debris.
Posted inNews

Martian Meteorites Reveal Evidence of a Large Impact

Katherine Kornei, Science Writer by Katherine Kornei 15 March 202215 March 2022

By analyzing rare Martian meteorites, researchers have uncovered a crystalline structure created by a large asteroid or comet impact that potentially affected the Red Planet’s habitability.

This aerial image shows two researchers exploring a sunken spring in the middle of a gray and white icy landscape. One researcher, dressed in blue, crouches inside a circular hole in the ice while a second researcher, dressed in black, stands to the left taking a photo.
Posted inNews

Lipids from Europa’s Ocean Could Be Detectable on the Surface

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 March 202210 March 2022

A super salty spring in the Canadian Arctic provides insights key to detecting life on a distant ocean world.

A selfie of NASA’s Curiosity rover, in the northwestern part of Gale crater
Posted inResearch Spotlights

科学家倒转时间追踪火星上的甲烷排放

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 24 February 202224 February 2022

火星上甲烷的峰值可能来自盖尔陨石坑内部,NASA的“好奇号”探测器目前正在那里进行探测。

Illustration of an exoplanet in the foreground with other exoplanets and their host star in the distance
Posted inFeatures

Tidally Locked and Loaded with Questions

by Caroline Hasler 17 February 202217 February 2022

Tidally locked planets always present the same face to their host stars. What does this mean for their potential to support life?

Illustration of the surface of early Earth with an orange sky (with a meteorite streaking through it), a green ocean, a large island landmass, an impact crater, and underwater volcanoes.
Posted inScience Updates

Rethinking the Search for the Origins of Life

by Dustin Trail, Jamie Elsila, Ulrich F. Müller, Timothy Lyons and Karyn L. Rogers 4 February 20224 May 2022

Early Earth conditions and the chemistry that led to life were inextricably interwoven. Earth scientists and prebiotic chemists are working together in new ways to understand how life first emerged.

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Features from AGU Publications

Research Spotlights

Tracing Black Carbon’s Journey to the Ocean

11 July 202510 July 2025
Editors' Highlights

The Power of Naming Space Weather Events

10 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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