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Mars

Artist’s impression of China’s Tianwen-1 spacecraft en route to Mars.
Posted inEditors' Highlights

First Solar Wind Plasma Observations from the Tianwen-1 Mission

by Limei Yan 6 May 20224 May 2022

Solar wind plasma data captured by the Tianwen-1 probe while in transit to Mars represent an important step toward a new era of cooperative Martian space exploration.

Simulation results showing the effective dose in mSv/year as a function of depth beneath the Martian surface.
Posted inEditors' Highlights

Life on Mars? Estimating Radiation Risks for Martian Astronauts

by Andrew Poppe 19 April 202214 April 2022

New research suggests that to minimize radiation risk for human exploration of Mars, astronauts will need to dig deep for safety.

An aerial image of the windswept surface of Mars. The ground is rusty red with blacker sediment curling across the image in the form of dunes. A dusting of white snow accentuates the ridges of large and small scale dunes.
Posted inNews

Mars’s Dust Cycle Controls Its Polar Vortex and Snowfall

by Kimberly M. S. Cartier 1 April 20221 April 2022

On Earth, the water cycle is a dominant climate force. On Mars, it’s the dust.

A view across the Amazon rain forest
Posted inAGU News

Dust in the Wind, Dirt Under Our Feet, and Dunes of Another World

by Heather Goss 23 March 202223 March 2022

In our April issue of Eos, we follow researchers who get to the root of the Amazon basin’s rich landscape.

An impact on the surface of Mars creates a shower of debris.
Posted inNews

Martian Meteorites Reveal Evidence of a Large Impact

by Katherine Kornei 15 March 202215 March 2022

By analyzing rare Martian meteorites, researchers have uncovered a crystalline structure created by a large asteroid or comet impact that potentially affected the Red Planet’s habitability.

Simulation of ions escaping the Martian atmosphere
Posted inResearch Spotlights

测量火星大气中的碳离子损失

by Morgan Rehnberg 10 March 202210 March 2022

NASA的MAVEN探测器观测到的碳通量与模型相符,比氧离子低1到2个数量级。

Detailed image shows sculpted layers of ice at Mars’s south pole.
Posted inNews

The Bumpy Search for Liquid Water at the South Pole of Mars

by Damond Benningfield 8 March 20228 March 2022

Studies since 2018 have provided competing explanations of bright radar reflections from the base of the south polar ice cap.

Posted inEditors' Highlights

Young Ponds on Mars

by Francis Nimmo 25 February 202215 March 2022

A detailed study of evaporite (chloride) deposits on Mars shows that small bodies of surface water persisted until about 2.5 Ga, more recently than previously thought.

A selfie of NASA’s Curiosity rover, in the northwestern part of Gale crater
Posted inResearch Spotlights

科学家倒转时间追踪火星上的甲烷排放

by JoAnna Wendel 24 February 202224 February 2022

火星上甲烷的峰值可能来自盖尔陨石坑内部,NASA的“好奇号”探测器目前正在那里进行探测。

Visualization of a methane plume in Mars’ atmosphere during the northern summer season as retrieved from NASA's Infrared Telescope Facility at Mauna Kea, Hawaii.
Posted inEditors' Vox

The Mystery of Methane on Mars Thickens

by Germán Martinez, Anni Määttänen and David Baratoux 15 February 202214 February 2022

Two recently published papers zoom in on the mystery source of methane in the Martian atmosphere.

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