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planets

Artist’s rendering of NASA’s Parker Solar Probe during a fly-by of Venus
Posted inNews

Lightning Struck Down as Source of a Venus Whistler

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 13 December 202313 December 2023

Whistlers were a key piece of evidence in favor of Venusian lightning. New measurements question the connection.

Luna de la Tierra
Posted inNews

La Luna es incluso más antigua de lo que los científicos pensaban

by Matt Hrodey 7 December 20237 December 2023

¿Cómo se formó la Luna y cuántos años tiene? La datación más precisa hasta el momento del satélite más grande de la Tierra determinó que es mucho más antigua de lo que se pensaba previamente.

Earth’s moon
Posted inNews

The Moon Is Even Older Than Scientists Thought

by Matt Hrodey 6 November 202313 September 2025

How did the Moon form and how old is it? The most precise dating yet of Earth’s largest satellite found that it is much older than previously thought.

An image of Mars.
Posted inNews

Five Martian Mysteries That Have Scientists Scratching Their Heads

by Matthew R. Francis 2 November 20232 November 2023

Despite centuries of study and many spacecraft visits, the Red Planet still holds secrets. Here are just a few.

A cloud of purple, green, and pink dust with a dark, starry background.
Posted inNews

Rogues’ Gallery Comes in Pairs

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 31 October 202331 October 2023

A new trove of free-floating planets, smaller and paired up more than expected, challenges stellar and planet formation models.

Representación artística de un criovolcán en erupción en Tritón, luna de Neptuno
Posted inNews

La canción de hielo y fuego del criovulcanismo

Erik Klemetti, Science Writer by Erik Klemetti 16 October 202316 October 2023

Las lunas oceánicas del sistema solar exterior nos dan pistas sobre volcanes de hielo, fuentes hidrotermales, y la tentadora posibilidad de habitabilidad.

A spacecraft consisting of a bright central box and two cross-shaped solar panels flies above the jagged landscape of a large asteroid.
Posted inNews

Getting Psyched Up for an Asteroid Mission

Damond Benningfield, Science Writer by Damond Benningfield 4 October 20235 October 2023

The first mission to a metallic asteroid, scheduled for launch on 5 October, could provide clues to the formation of Earth and the solar system’s other inner planets.

An artist’s depiction of a cryovolcano is erupting on Neptune’s moon Triton.
Posted inFeatures

Cryovolcanism’s Song of Ice and Fire

Erik Klemetti, Science Writer by Erik Klemetti 25 September 202316 October 2023

Ocean moons of the outer solar system hint at ice volcanoes, hydrothermal vents, and the tantalizing chance of habitability.

Illustration of a water-covered planet viewed from its surface: In the foreground is rippling water reflecting pink, yellow, and white light from a glowing phenomenon in the distance, in the middle of the illustration. Surrounding the bright phenomenon are bright stars and translucent clouds visible in front of a dark background.
Posted inAGU News

Oceans of Opportunity

by Caryl-Sue Micalizio 25 September 202329 September 2023

Our solar system’s ocean worlds offer scientists intriguing instances of exotic phenomena and fresh prospects in the elusive search for planetary habitability.

An artificially colorized view of a rocky valley between two hills on Mars, with part of the Curiosity rover visible at bottom. The right portion of the image, under blue sky, represents the scene in the morning, and the left portion, under yellow sky, the afternoon.
Posted inResearch Spotlights

Mars Has Far Fewer Minerals Than Earth Does

Rachel Fritts, Science Writer by Rachel Fritts 6 September 20236 September 2023

The development of plate tectonics and life on Earth provided avenues for mineral evolution that did not occur on Mars, resulting in relatively limited mineral diversity on the Red Planet.

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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

Our Ocean’s “Natural Antacids” Act Faster Than We Thought

30 January 202630 January 2026
Editors' Highlights

Visualizing and Hearing the Brittle–Plastic Transition

3 February 20263 February 2026
Editors' Vox

Tsunamis from the Sky

3 February 20263 February 2026
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