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planetary atmospheres

In this bird’s-eye satellite view, light brown peaks and valleys appear beneath a thin, grayish-white haze of foggy cloud cover that varies in translucence.
Posted inResearch Spotlights

First Complete Picture of Nighttime Clouds on Mars

Sarah Stanley, Science Writer by Sarah Stanley 11 August 202519 August 2025

Data captured by the Emirates Mars Mission reveal that clouds are typically thicker during Martian nighttime than daytime.

Two people stand in a snowy landscape near icy water and glaciers, holding up a black pole that is about twice as tall as them.
Posted inResearch Spotlights

Can Microorganisms Thrive in Earth’s Atmosphere, or Do They Simply Survive There?

by Rebecca Owen 7 August 202525 September 2025

A bottom-up modeling approach could bring scientists closer to understanding communities of microbes in the atmosphere.

An illustration of an orange-yellow star releasing a massive flare and stellar material along a magnetic loop that connects with a nearby red planet that is outgassing its atmosphere.
Posted inNews

Exoplanet Triggers Stellar Flares and Hastens Its Demise

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 5 August 20255 August 2025

HIP 67522 b can’t stop blasting itself in the face with stellar flares, a type of magnetic interaction that scientists have spent decades looking for.

A silver-colored spacecraft orbits above a red-colored planet with craters visible on its surface.
Posted inNews

Scientists Spot Sputtering on Mars

Katherine Kornei, Science Writer by Katherine Kornei 24 June 202524 June 2025

Nearly a decade’s worth of data went into the first direct observation of sputtering on Mars, which researchers believe contributed to the loss of the Red Planet’s atmosphere.

An illustration of a red and orange gaseous planet in front of a yellow star
Posted inNews

First 3D Map of Exoplanet Weather Reveals Superfast Jet

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 17 March 202517 March 2025

New observations also answer a long-standing question about where this ultrahot planet keeps its titanium.

An artist’s depiction of Venus. An earthquake, shown as concentric circles, is measured by a lander on the surface, a balloon in the atmosphere, and an orbiter.
Posted inResearch Spotlights

Three Ways to Track Venusquakes, from Balloons to Satellites

by Nathaniel Scharping 26 November 202426 November 2024

The planet’s harsh conditions make studying seismicity challenging, but it is likely possible.

Titan's rampart craters.
Posted inEditors' Highlights

The Explosive Origins of Titan’s Rampart Craters

by Amanda Hendrix 21 November 202420 November 2024

In a new study, volcanic explosions are explored and modeled to understand the possible origins of rampart craters on Titan and determine whether their formation can source atmospheric methane.

A sphere with a mottled orange, red, yellow, and gray surface appears bright against a black background.
Posted inResearch Spotlights

How Did Magma Oceans Evolve on Early Earth and Mars?

Sarah Stanley, Science Writer by Sarah Stanley 10 October 202410 October 2024

New insights into the early timelines of rocky planets are emerging, thanks to clues from iron chemistry and primordial atmospheres.

A simulated image of clouds over the Pacific Ocean and the Americas.
Posted inResearch Spotlights

Modeling Earth Systems at a Quintillion Calculations per Second

by Rebecca Owen 6 August 20246 August 2024

I SCREAM, you SCREAM, we all SCREAM for faster climate modeling.

A blue planet appears next to a yellow star against a black background.
Posted inNews

Smells Like an Exoplanet

Katherine Kornei, Science Writer by Katherine Kornei 1 August 20245 August 2024

Hydrogen sulfide, spotted in the atmosphere of the exoplanet HD 189733 b, helps constrain how the planet formed.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

Forty Thousand Cubic Meters of Fresh Water Flow from the Congo into the Atlantic Every Second. A New Study Traces Where It Goes from There.

2 July 20262 July 2026
Editors' Highlights

Fluid-Driven Reactions Restore Fault Strength Between Earthquakes

30 June 202630 June 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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