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planetary surfaces

A person wearing sunglasses uses a remote control to drive a chest-height, six-wheeled rover on dirt.
Posted inFeatures

Tanya Harrison: Roving on Mars

by Matthew R. Francis 28 July 202528 July 2025

This planetary geologist has worked on nearly every Mars rover while connecting government, universities, the private sector, and the public.

A scientist stands behind a camera on a tripod in front of a short patch of wavy sand in an orange desert.
Posted inNews

Mini Dunes Form When Sand Stops Bouncing

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 11 June 20259 June 2025

Decoding how sand grains move and accumulate on Earth can also help scientists understand dune formation on Mars.

A view from above of a set of interlocking ridges running through a landscape.
Posted inNews

Cracks on Planetary Surfaces Hint at Water

Katherine Kornei, Science Writer by Katherine Kornei 17 April 202517 April 2025

Imagery of fractured terrain on Venus, Mars, and Jupiter’s moon Europa pinpoints environments influenced by water.

Big chamber where scientists were able to conduct the mud experiments
Posted inNews

Salt May Be Key to Martian Mudflows

by Larissa G. Capella 9 April 2025

Mars probably has mud volcanoes, and salt might be the ingredient that keeps the flow going.

Heavily cratered surface of the Moon with two linear valleys radiating from a large central crater
Posted inNews

Impact Spewed Debris Away from the Moon’s South Pole

by Jonathan O’Callaghan 1 April 20251 April 2025

Two valleys extending away from a giant crater suggest that upcoming Artemis missions are more likely to sample ancient lunar terrain than impactor material.

A reddish planet appears with a blue ocean covering most of its upper half
Posted inNews

Buried Sediments Point to an Ancient Ocean on Mars

Katherine Kornei, Science Writer by Katherine Kornei 26 March 202526 March 2025

Ground-penetrating radar data collected by the Zhurong rover reveal gently sloping sediments in Mars’s northern lowlands that hint at a shoreline.

Landslides in Hebes Chasma on Mars.
Posted inThe Landslide Blog

Landslides in Hebes Chasma, Mars

by Dave Petley 13 March 202513 March 2025

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. I rarely write about landslides on other planetary bodies, primarily because this is outside of my comfort zone. However, the European Space Agency (ESA) image below popped up on my feed this […]

Illustration of astronauts using rock hammers to collect samples on the Moon
Posted inNews

Human Activities Might Create Temporary Atmospheres on the Moon

by Jonathan O’Callaghan 11 December 202411 December 2024

Outgassing could pose problems for long-term habitation of the Moon, including health hazards for astronauts, hindrances for electronics, and hampered scientific study.

Side-by-side images of irregularly shaped gray/brown rocks in space.
Posted inNews

Pluto’s Small Moons Are Unlike Any Other

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 December 202410 December 2024

The strange blend of surface chemistry on Nix and Hydra raises big question about the evolution of the Pluto system.

An artist’s depiction of the LCROSS mission, in which a hexagonal spacecraft, seen from behind, ejects a white cylindrical body to land on the Moon’s south pole.
Posted inResearch Spotlights

Fifteen Years Later, Scientists Locate a Lunar Impact Site

by Nathaniel Scharping 9 October 202415 October 2024

The impact crater from NASA’s LCROSS mission lies hidden in an eternally dark region of the Moon.

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How Earthquakes Shake Up Microbial Lake Communities

24 July 202524 July 2025
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Why Crop Yield Decreases at High Temperatures

29 July 202529 July 2025
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JGR: Space Physics Launches New Instrumentation Article Type

23 July 202521 July 2025
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