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life as we know it

A green Acaryochloris marina culture in a conical flask
Posted inNews

Red-Light-Loving Bacteria Could Expand the Search for Life

by Kristel Tjandra 22 May 202422 May 2024

Scientists are uncovering genes responsible for oxygenic photosynthesis in cyanobacteria to shift the search for potentially habitable worlds.

In the foreground, bright blue-white sprays emanate from a curved, blue-white surface against the starry background of space, with a gold-toned ringed planet and two smaller moonlike orbs nearby.
Posted inResearch Spotlights

Looking for Life on Enceladus: What Questions Should We Ask?

Sarah Stanley, Science Writer by Sarah Stanley 8 May 202411 June 2024

On icy ocean worlds, a research framework built around the theory of organic chemical evolution could surface deeper insights than a hunt limited to direct evidence of life.

A white and tan moon covered with streaks of tan
Posted inNews

Europa’s Ocean Might Lack the Ingredients for Life

Javier Barbuzano, Science Writer by Javier Barbuzano 12 April 202412 April 2024

The lack of volcanism and tectonic activity on Europa’s seafloor might hinder the moon’s potential to host living organisms.

Lava and ash spewing from a volcano at night with several branching streaks of lightning.
Posted inNews

Volcanic Lightning May Have Retooled the Nitrogen Needed for Life

by Carolyn Wilke 1 March 20241 March 2024

Early Earth’s volcanoes could have spurred lightning that transformed atmospheric nitrogen, creating molecules that would have been necessary for life to emerge.

A person crouches with an outstretched arm atop a dried lake bed coated with white salt.
Posted inNews

Last Chance Lake Harbors the Highest Known Levels of Phosphate

Katherine Kornei, Science Writer by Katherine Kornei 29 February 202429 February 2024

Bodies of water such as this might have functioned as cradles of life, given their unique biogeochemistry.

这张木星卫星木卫二的照片显示了它的表面地质情况:带有棕色条纹的白色表面。
Posted inResearch Spotlights

科学家研究木卫二的热量如何通过海洋向上传递

by Rebecca Owen 9 February 2024

木星的卫星木卫二可能是太阳系中最有希望寻找到生命的地方之一。一项新的研究探讨了热量是如何从木卫二的地幔通过海洋转移到其冰壳中的。

A brilliant green mineral juts out from a chunk of blackish rock dotted with other patches of green crystals.
Posted inNews

Olivine May Have Given Life a Jump Start

by Elise Cutts 1 February 20241 February 2024

A mineral common throughout the solar system nudges a reaction that produces sugar molecules from formaldehyde.

Close-up view of a slimy-looking deep purple microbial mat with lighter-colored splotches
Posted inFeatures

Modern Microbial Mats Offer Glimpses of Other Times and Places

by Bopaiah A. Biddanda, Anthony D. Weinke, Ian P. Stone, Steven A. Ruberg and Phil A. Hartmeyer 12 January 202412 January 2024

Comprising diverse groups of microbes, isolated but globally scattered mat ecosystems like those in Lake Huron may be analogues of life on early Earth and in other exotic environs.

An image of Jupiter’s moon Europa that shows its surface geology: a white surface with brown streaks.
Posted inResearch Spotlights

Scientists Investigate How Heat Rises Through Europa’s Ocean

by Rebecca Owen 10 January 20249 February 2024

A new study examines how heat may be transferred from the mantle, through the ocean, and into the icy crust of one of Jupiter’s moons—perhaps among the most promising places in our solar system to search for life.

Illustration showing the orbits of three planets around a red star, with depictions of what the planets might look like
Posted inNews

Giant Planets May Be “Agents of Chaos”

Damond Benningfield, Science Writer by Damond Benningfield 18 December 202318 December 2023

Two studies suggest that some giants could make it difficult or even impossible for terrestrial planets to remain in a star’s habitable zone.

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Features from AGU Publications

Research Spotlights

On the Origins of Subantarctic Mode Waters

2 June 20252 June 2025
Editors' Highlights

Seasonal Iron Cycle and Production in the Subantarctic Southern Ocean

29 May 202529 May 2025
Editors' Vox

Rock Glacier Velocity: Monitoring Permafrost Amid Climate Change

3 June 20252 June 2025
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