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Mars

A woman operates a four-legged robot
Posted inNews

Very Good Space Boys: Robotic Dogs May Dig Into Martian Caves

by I. Backman 7 January 202119 July 2022

Four-legged, autonomous robots known as “Mars Dogs” will explore previously inaccessible caves to look for signs of life and potential locations for future human colonies.

Plot showing X-Ray Diffraction patterns for products from Mars chamber electrostatic discharge experiments using hydrated magnesium sulfate salt starting materials.
Posted inEditors' Highlights

Martian Dust Activities Induce Electrochemistry

by Mariek E. Schmidt 7 January 202115 March 2023

Amorphous materials generated from sulfur and chloride salts by electrostatic discharge in a Mars chamber suggest widespread electrical processes during dust activities.

Color image of the planet Mars
Posted inResearch Spotlights

First Detection of a Built-In Wobble on Another Planet

by Jack Lee 4 January 202128 October 2021

Spacecraft find that Mars oscillates 10 centimeters off its axis of rotation.

Close-up satellite view of carbon dioxide ice in Mars’s south polar cap
Posted inResearch Spotlights

A Precise Mosaic View of Mars’s South Pole

Sarah Stanley, Science Writer by Sarah Stanley 2 November 2020

A new workflow improves the process of creating massive, accurate mosaics from spacecraft-captured images of a planet’s surface.

Image of part of Mars showing the planet’s atmosphere on the horizon
Posted inResearch Spotlights

Capturing Heat-Driven Atmospheric Tides on Mars

Sarah Stanley, Science Writer by Sarah Stanley 13 October 202023 September 2022

Spacecraft observations and model simulations provide new insights into tidal patterns that transport momentum and energy into the planet’s upper atmosphere.

Photographs of two different locations on the surface of Mars showing a small impact crater (top) and a similarly sized hollow (bottom)
Posted inEditors' Highlights

Self-Repairing Blemishes on the Surface of Mars

by B. J. Thomson 18 August 20206 March 2023

A new study of small impact craters at Mars landing sites suggests that active processes degrade and infill depressions at similar rates in locations separated by thousands of kilometers.

An image depicting bright-toned sand ripples in Proctor Crater on Mars.
Posted inResearch Spotlights

Megaripple Migration Offers Insights into Martian Atmosphere

Rachel Fritts, Science Writer by Rachel Fritts 31 July 20208 March 2022

The movement of large sand ripples, documented for the first time, suggests Mars is windier than we thought.

Selfie taken by the Curiosity rover at the top of Vera Rubin ridge
Posted inEditors' Vox

Curiosity Solves the Mystery of Gale Crater’s Hematite Ridge

by A. Deanne Rogers, Mariek E. Schmidt and A. Fraeman 31 July 202024 April 2024

A new special issue of JGR: Planets details the water-rich history of a distinctive geomorphic feature on Mars dubbed Vera Rubin ridge, as investigated by the Curiosity rover.

Schematic of the mechanical design of the Heatflow and Physical Properties Package radiometer
Posted inEditors' Highlights

Insights from Calibration of the HP³ Radiometer on InSight

by Kristy Tiampo 27 July 202022 June 2022

A detailed analysis of Heatflow and Physical Properties Package Radiometer on the Mars InSight lander, including changing instrument sensitivity and calibration coefficients.

Map of the Gusev Crater region of Mars with craters detected by an algorithm shown in red
Posted inEditors' Highlights

Who Wants to Count All the Craters on Mars? Not Me!

by P. Fox 21 July 202028 January 2022

Humans found hundreds of thousands of craters on Mars greater than 1 kilometer in diameter, but now computers automate the process delivering crater counts as well as geologically meaningful ages.

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