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Space & Planets

An exoplanet with an ice-rock surface and hazy atmosphere orbits a star.
Posted inNews

Icy Worlds Have Mixed Ice-Rock Interiors

by Jure Japelj 23 February 202223 February 2022

Scientists make a case for a more realistic treatment of icy planets’ structure in which ices and rocks are mixed instead of separated in layers.

A partially frozen planet sits on a black background.
Posted inFeatures

The Young Earth Under the Cool Sun

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 22 February 202220 June 2024

How did our planet avoid being frozen solid during the early days of our solar system?

Illustration of an exoplanet in the foreground with other exoplanets and their host star in the distance
Posted inFeatures

Tidally Locked and Loaded with Questions

by Caroline Hasler 17 February 202217 February 2022

Tidally locked planets always present the same face to their host stars. What does this mean for their potential to support life?

A rocky planet and a smaller rocky moon sit on a black background with dark red streaks. The planet in the foreground has a cratered surface and has patches of red, green, gray, and blue rocks. The smaller grayish brown rocky moon in the background is between 10 and 11 o’clock relative to the planet.
Posted inNews

To Make a Big Moon, Start with a Small Planet

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 February 202210 February 2022

Why is our Moon so massive compared with Earth, and how might that configuration happen elsewhere?

Simulation of ions escaping the Martian atmosphere
Posted inResearch Spotlights

Measuring Carbon Ion Loss from the Martian Atmosphere

by Morgan Rehnberg 8 February 202210 March 2022

The flux, observed with NASA’s MAVEN spacecraft, is in line with models and 1–2 orders of magnitude lower than that of oxygen ions.

The 9-kilometer-tall volcano Maat Mons, shown here with an exaggerated vertical scale, may be relatively young.
Posted inResearch Spotlights

¿Es Venus volcánicamente activo? Nuevo enfoque podría proporcionar una respuesta

Sarah Stanley, Science Writer by Sarah Stanley 8 February 20228 February 2022

Una estrategia que combina la cartografía geológica con datos sobre cómo la superficie del planeta emite y absorbe la radiación de microondas podría potencialmente identificar flujos de lava recientes.

Inspecting mine drainage in a river
Posted inEditors' Vox

Using Hematite to Decipher Past Climates and Environments

by Zhaoxia Jiang, Qingsong Liu, Andrew Roberts, Mark J. Dekkers, Vidal Barrón, José Torrent and Sanzhong Li 7 February 20223 January 2023

The magnetic and color properties of the mineral hematite give clues to past environmental conditions and is being used for paleoclimatic reconstruction.

Sputnik Planitia, which features nitrogen ice plains on Pluto
Posted inResearch Spotlights

Clues to Pluto’s History Lie in Its Faults

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 31 January 20221 February 2022

Studying geological features on Pluto’s surface can illuminate the ancient history of how the dwarf planet formed.

Martian meteorite ALH84001 shown with a 1-centimeter cube for scale
Posted inNews

A New Explanation for Organics on a Mars Rock That Fell to Earth

by Derek Smith 26 January 20228 March 2022

Organic molecules on a Martian meteorite have fueled nearly 30 years of scientific debate. New evidence suggests they were formed by Martian processes, offering more support for a once habitable environment on the Red Planet.

Photograph of Graziella Caprarelli
Posted inEditors' Vox

Introducing the New Editor in Chief of Earth and Space Science

by Graziella Caprarelli 21 January 202221 October 2022

Find out about the person taking the helm of Earth and Space Science and her vision for the coming years.

Posts pagination

Newer posts 1 … 45 46 47 48 49 … 126 Older posts
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

Extensive Sand Dune Loss Threatens California Coast

26 June 202625 June 2026
Editors' Highlights

Where Methane is Emitted Matters for Global Burden

18 June 202616 June 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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