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life as we know it

An illustration of plant life beneath the ocean with an aurora in the sky
Posted inNews

A Magnetic Low May Have Paved the Way for Complex Life

by Saugat Bolakhe 5 June 20245 June 2024

Multicellular life blossomed when Earth’s magnetic field was at an all-time low.

A planet with oceans, clouds, and landmasses appears against a black background.
Posted inNews

A Step Closer to Solving the Fermi Paradox

Katherine Kornei, Science Writer by Katherine Kornei 24 May 20249 January 2025

Finding evidence of complex life elsewhere in the Milky Way galaxy hinges on locating rocky planets with plate tectonics and a mixture of landmasses and oceans, new research suggests.

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.

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14 November 202514 November 2025
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Taking Carbon Science Out of Orbit

12 November 202512 November 2025
Editors' Vox

Announcing New AGU Journal Editors-in-Chief Starting in 2026

12 November 202513 November 2025
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