• About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
Skip to content
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
Eos

Eos

Science News by AGU

Support Eos
Sign Up for Newsletter
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos

Mars

Researchers analyze traces of volcanic activity and water flooding in Hrad Vallis on Mars
Posted inResearch Spotlights

Tracing the Steps of Hydrothermal Activity in Hrad Vallis, Mars

by S. Witman 10 July 201810 October 2021

Conditions that formed Amazonian age valleys may have been hospitable to microbial life.

The 10 September 2017 X class solar flare in ultraviolet light.
Posted inNews

Solar Flare Caused Increased Oxygen Loss from Mars’s Atmosphere

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 4 June 201820 December 2022

Measurements by a Mars-orbiting spacecraft indicated heating and chemistry changes in the planet’s atmosphere following an extreme solar eruption last year.

Laguna Caliente in Costa Rica
Posted inNews

Scientists Discover an Environment on the Cusp of Habitability

Katherine Kornei, Science Writer by Katherine Kornei 25 May 201824 February 2022

A volcanically heated Costa Rican lake hosts only one type of organism, suggesting that its Mars-like environment is just barely capable of supporting life.

Mars InSight sitting on the Martian surface with the inner solar system planets in the background
Posted inNews

New Lander en Route to Probe the Red Planet’s Interior

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 7 May 20182 July 2025

The Mars InSight mission aims to answer key planetary science questions about seismicity, meteorite impacts, and the formation of rocky planets.

Gale Crater on Mars
Posted inNews

History of Mars’s Water, Seen Through the Lens of Gale Crater

by R. Skibba 5 April 20183 January 2023

Research uncovers more of Mars’s past, when flowing water may have been transient before eventually disappearing.

Spatter bombs
Posted inNews

Homemade “Spatter Bombs” Can Reveal Volcanic Secrets

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 23 March 201815 November 2022

Researchers use trial and error to develop a technique to create volcanic lava bombs.

Posted inEditors' Highlights

Long Term Preservation of Subsurface Ice on Mars

by Steven A. Hauck, II 14 February 201828 January 2022

Layered-ejecta craters on Mars that are associated with impacts into rock mixed with volatiles have been formed throughout the planet’s history indicating the long-term preservation of subsurface ice.

Researchers examine mudstone in Mars’s Gale crater to unravel the history of liquid surface water
Posted inResearch Spotlights

History of Water on Mars’s Surface Is Longer Than We Thought

by Terri Cook 2 February 20183 January 2023

Curiosity’s two-step heating experiment of mudstone at Gale crater reveals minerals that formed in the presence of water less than 3 billion years ago.

An artist’s conception of a portable Martian greenhouse currently being developed at NASA.
Posted inNews

Tests Indicate Which Edible Plants Could Thrive on Mars

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 12 January 201815 November 2023

An undergraduate experiment grew vegetables and herbs in simulated Martian soil under Mars-like reduced daylight. The tasty results suggest that Mars colonists could farm their own produce.

Posted inEditors' Highlights

Where the Solar Wind Meets Mars

by Michael W. Liemohn 12 January 201812 October 2022

A comprehensive look at how the solar wind is diverted around Mars, including the relative strength of the three biggest forces at work in this region.

Posts pagination

Newer posts 1 … 16 17 18 19 20 … 24 Older posts
A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Strong Tides Speed Melting of Antarctic Ice Shelves

8 September 20258 September 2025
Editors' Highlights

Quantifying Predictability of the Middle Atmosphere

5 September 20255 September 2025
Editors' Vox

Experienced Researcher Book Publishing: Sharing Deep Expertise

3 September 202526 August 2025
Eos logo at left; AGU logo at right

About Eos
ENGAGE
Awards
Contact

Advertise
Submit
Career Center
Sitemap

© 2025 American Geophysical Union. All rights reserved Powered by Newspack