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Mars

A panoramic view of rocky mounds on a rust-colored Martian landscape
Posted inNews

Does This Mineral Indicate Oxygen on Mars?

by Elise Cutts 30 January 202330 January 2023

Manganese oxides are thought to be a signature of atmospheric oxygen. But on the Red Planet, recent results suggest they might be more of a red herring.

Two graphs from the paper with temperature on the x-axis and pressure on the y-axis.
Posted inEditors' Highlights

Unprecedented Constraint on the Martian Mesopause Temperature

by Jun Cui 11 January 202318 January 2023

The middle atmosphere of Mars is a critical region influenced by both waves from below and solar radiation from above, but until now there have been very few observational constraints on this region.

Black-and-white satellite photo of the Martian surface before and after a meteor impact
Posted inNews

Meteor Impact Could Inform Martian Mysteries

by Caroline Hasler 16 December 202216 December 2022

The impact sent surface waves rippling over the Martian surface all the way to NASA’s InSight lander, giving scientists a rare view of the planet’s outer layer.

Orange- and brown-spotted background with white S-shaped cloud in center left of image. Opposing black S shape crosses image horizontally.
Posted inNews

NASA’s Perseverance Rover Records the First Sounds of a Dust Devil on Mars

by Jon Kelvey 13 December 202227 January 2023

In a stroke of luck, the SuperCam microphone on Perseverance was turned on the moment a dust devil swept directly over the rover.

Black-and-white satellite image showing a valley and paleolake on Mars’s surface
Posted inResearch Spotlights

Long-Lived Lakes Reveal a History of Water on Mars

by Sarah Derouin 6 December 20226 December 2022

High-resolution imagery of newly discovered paleolakes shows a period of consistent liquid water flow.

A pebble-sized meteorite sits next to a dime for scale.
Posted inNews

Martian Meteorites Offer a Tantalizing Glimpse of the Red Planet

by Katherine Kornei 23 November 202223 November 2022

By studying these literal chunks of Mars, scientists are learning more about the Red Planet’s deep interior and impact history.

Cross-sectional illustration of Mars showing the location of the InSight lander, the site of a meteorite impact, and different seismic wave paths from the impact that InSight detected
Posted inResearch Spotlights

Powerful Impact Provides Insight into Deep Structure of Mars

by Rachel Fritts 14 November 202214 November 2022

Seismic signals detected by the InSight lander show that the planet’s lower mantle may be less homogenous than previous models have suggested.

Four graphs from the paper.
Posted inEditors' Highlights

Ozone, Water Vapor and Temperature: It’s a Complex Relation

by Germán Martinez 28 September 202227 September 2022

Solar occultation observations from the ACS/MIR instrument provide coincident profiles of O3, H2O and temperature, shedding light on correlations and unveiling knowledge gaps in Mars’s photochemistry.

A circular hole drilled into Gale Crater on Mars.
Posted inNews

Unraveling the Mystery of a Rare Mineral on Mars

by Clarissa Wright 7 September 20223 January 2023

The discovery of tridymite in Mars’s Gale Crater triggered debate about the rare mineral’s origins. A research team recently suggested a scenario with explosive implications.

We are in the middle of solar cycle 25, which means that the Sun has been slowly ramping up its sunspot and flare activity for the past few years.
Posted inFeatures

11 Discoveries Awaiting Us at Solar Max

by Kimberly M. S. Cartier 25 August 202230 September 2022

Each solar cycle might seem like the same old story, but one thing has changed significantly since the previous solar maximum–our technology.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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