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Mars

Photo of rocky hot springs covered by yellow microbial mats
Posted inNews

Microbes Spotted in “Polyextreme” Hot Springs

Katherine Kornei, Science Writer by Katherine Kornei 24 June 20194 January 2023

Hot springs that are as acidic as battery acid are home to single-celled microorganisms that may indicate that life could have been sustained on ancient Mars.

Satellite image of the surface of Mars, with a 5-kilometer scale
Posted inResearch Spotlights

Detecting Carbonates on the Surface of Mars

by E. Underwood 16 May 201928 July 2022

A new study shows how a warm, wet climate weathered rocks on early Mars.

InSight’s seismometer deployed on Mars
Posted inNews

First Possible Marsquake Detected

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 26 April 201922 June 2022

First earthquakes, then moonquakes, now marsquakes: a robotic lander comes through with the first detection of seismic activity on Mars.

Artwork by Anastasia Grigoryeva depicting solar wind as it affects the Martian atmosphere
Posted inResearch Spotlights

How Mars Lost Steam

by E. Underwood 11 April 201915 March 2023

Solar winds are not the main culprit in stripping the planet’s atmosphere, a new study suggests.

An artist’s rendering of what Mars may have looked like 4 billion years ago with an ocean covering about half of its surface
Posted inResearch Spotlights

A New Way to Analyze Evidence of Martian Oceans

Elizabeth Thompson by Elizabeth Thompson 9 April 201928 July 2022

Mars’s aqueous past holds the answers to many questions about the Red Planet. A new study provides a tool for scouring planetary surfaces for ancient shorelines.

Laboratory experiment used to simulate the shock wave made by an asteroid impact on Mars
Posted inResearch Spotlights

Rover and Lasers Unlock Clues to Early Martian Atmosphere

Aaron Sidder, freelance science writer by Aaron Sidder 3 April 201924 April 2024

Sediments from the Curiosity rover and experiments using tanks of gas and laser beams helped reveal how water continued to flow on Mars after the planet lost its atmospheric carbon dioxide.

An artist’s rendering of the Mars Express spacecraft
Posted inResearch Spotlights

The Accidental Particle Accelerator Orbiting Mars

by Mark Zastrow 3 April 201920 October 2021

The radar aboard the Mars Express spacecraft can generate ion beams arcing through space above the planet, which could lead to a new way of studying the plasma surrounding it.

Illustration of a NASA Mars Exploration Rover on the surface of Mars
Posted inOpinions

Rest in Peace, Spirit and Opportunity

by R. Anderson 28 March 201917 January 2023

A scientist on the rover team offers a remembrance of two intrepid explorers.

Jezero Crater River Delta on Mars
Posted inNews

What Ancient Rivers on Mars Reveal About Its “Great Drying”

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 27 March 201923 February 2023

Dried-up rivers on Mars suggest that the planet was wet in the not-too-distant past.

Perspective view of Mars’s south polar ice cap
Posted inResearch Spotlights

Local Heat Source Needed to Form Liquid Water Lake on Mars

by Terri Cook 12 March 201910 March 2022

Thermal modeling suggests that active magmatism in the past few hundred thousand years could account for the presence of a large lake previously hypothesized beneath the Red Planet’s southern ice cap.

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9 July 20258 July 2025
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Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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