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Mars

Image taken by Mars Curiosity Rover of the Martian surface showing its parallel wheel tracks (center, spaced 9 feet apart) in red Martian regolith. In the center of the image, the regolith appears to be fine grained. On both sides, slopes are studded with boulders and cobbles of varying shades of red and gray black. The regolith in the foreground is scattered with many angular red or gray cobbles. The gray Martian sky forms the backdrop with red hills in the distance.
Posted inNews

Fungi, Fertilizer, and Feces Could Help Astronauts Grow Plants on the Moon

by Alka Tripathy-Lang 1 December 20251 December 2025

A new study offers tantalizing evidence that filamentous fungi extending from roots, along with treated astronaut waste, could provide sufficient scaffolding to help plants grow in planetary regolith.

A satellite image shows dark sand deposits near the south pole of Mars. The shape formed by the deposits is reminiscent of an angel with outstretched wings with a large heart under its right wing.
Posted inResearch Spotlights

Maybe That’s Not Liquid Water on Mars After All

by Rebecca Owen 21 November 202521 November 2025

A “very large roll” of a radar instrument offers new insight into a highly reflective area near the Martian south pole.

A rover sits atop a rocky ridge on Mars, under pink skies.
Posted inNews

Sediments Hint at Large Ancient Martian Moon

Damond Benningfield, Science Writer by Damond Benningfield 20 November 202526 November 2025

Regular, alternating layers in Gale Crater may have been deposited as the result of tides raised by a moon at least 18 times the mass of Phobos, a study says.

Three dust devils on the Martian surface, seen from above and appearing as small white splotches.
Posted inNews

Martian Dust Devils Reveal Dynamic Surface Winds

Javier Barbuzano, Science Writer by Javier Barbuzano 28 October 202528 October 2025

A new wind map covering the whole of Mars includes some of the fastest winds ever detected on the Red Planet.

The JPL campus with mountains in the background. The NASA logo is prominently displayed.
Posted inResearch & Developments

JPL Workforce Decimated

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 14 October 202514 October 2025

NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, Calif., laid off 550 people, a roughly 11% reduction of its workforce.

Cutaway diagram of seismographic waves passing through the interior of Mars, with a metal core at center
Posted inNews

Scientists May Have Finally Detected a Solid Inner Core on Mars

Javier Barbuzano, Science Writer by Javier Barbuzano 1 October 20251 October 2025

Seismic clues from NASA’s InSight mission suggest that Mars hides a solid inner core, and raise new questions about why the planet’s magnetic field disappeared.

The Perseverance Mars rover, a robot, pictured in front of a red landscape on Mars.
Posted inResearch & Developments

Perseverance Sample Shows Possible Evidence of Ancient Martian Microbial Metabolisms

by Grace van Deelen 10 September 202510 September 2025

A sample collected in July 2024 by NASA’s Perseverance Mars rover may be “the closest we’ve actually come to discovering ancient life on Mars,” according to Nicky Fox, the science head of NASA.

In this bird’s-eye satellite view, light brown peaks and valleys appear beneath a thin, grayish-white haze of foggy cloud cover that varies in translucence.
Posted inResearch Spotlights

First Complete Picture of Nighttime Clouds on Mars

Sarah Stanley, Science Writer by Sarah Stanley 11 August 202519 August 2025

Data captured by the Emirates Mars Mission reveal that clouds are typically thicker during Martian nighttime than daytime.

A person wearing sunglasses uses a remote control to drive a chest-height, six-wheeled rover on dirt.
Posted inFeatures

Tanya Harrison: Roving on Mars

by Matthew R. Francis 28 July 202528 July 2025

This planetary geologist has worked on nearly every Mars rover while connecting government, universities, the private sector, and the public.

Photo of a valley with a dark water tracks leading to a sinuating river.
Posted inEditors' Vox

Water Tracks: The Veins of Thawing Landscapes

by Joanmarie Del Vecchio and Sarah G. Evans 25 June 202525 June 2025

Tracing and tracking change in permafrost flowpaths could reveal the dynamics of warming poles.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Wintertime Spike in Oceanic Iron Levels Detected near Hawaii

11 December 202511 December 2025
Editors' Highlights

Frictional Properties of the Nankai Accretionary Prism

11 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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