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comets

Una cuadrícula muestra imágenes de 74 anillos brillantes de diversas formas, tamaños y ángulos.
Posted inNews

Cinturones polvorientos ofrecen una visión más clara de la formación de exoplanetas

Damond Benningfield, Science Writer by Damond Benningfield 31 March 202531 March 2025

Las observaciones en longitudes de onda milimétricas de polvo y guijarros en 74 sistemas estelares sugieren que las migraciones planetarias podrían ser más comunes de lo que pensábamos.

A grid shows images of 74 bright rings of various shapes, sizes, and angles.
Posted inNews

Dusty Belts Provide Clearer Insights into Exoplanet Formation

Damond Benningfield, Science Writer by Damond Benningfield 18 February 202518 February 2025

Millimeter-wavelength observations of dust and pebbles in 74 star systems hint that planetary migrations might be more common than we realized.

El vehículo explorador Mars 2020 Perseverance en la superficie de Marte en un selfie ensamblado a partir de varias imágenes tomadas por el brazo robótico del vehículo explorador. Uno de los tubos de almacenamiento de muestras del vehículo explorador está en el suelo delante del vehículo explorador.
Posted inFeatures

El pasado, presente y futuro de traer muestras extraterrestres

by Jemma Davidson and Jessica Barnes 23 October 202423 October 2024

La obtención de muestras de cuerpos distantes del sistema solar ha revolucionado nuestra comprensión del cosmos y del lugar que ocupamos en él.

The Mars 2020 Perseverance rover is seen on Mars’s surface in a selfie assembled from several images taken by the rover’s robotic arm. One of the rover’s sample caching tubes is on the ground in front of the rover.
Posted inFeatures

The Past, Present, and Future of Extraterrestrial Sample Return

by Jemma Davidson and Jessica Barnes 17 July 202423 October 2024

Retrieving samples from distant solar system bodies has revolutionized our understanding of the cosmos and our place in it.

Three images of two-lobed Arrokoth in varying clarity and color.
Posted inNews

A Sugar Coating for Arrokoth

by Jonathan O’Callaghan 10 July 202410 July 2024

A Kuiper Belt object might contain ribose and glucose on its surface—the same elements that could have seeded life on Earth.

Photo of Amanda Hendrix and the journal cover.
Posted inEditors' Vox

Introducing the New Editor-in-Chief of JGR: Planets

by Amanda Hendrix 8 May 20247 May 2024

Learn about the person taking the helm of JGR: Planets and their vision for the coming years.

Mosaic of four images of Comet 67P/Churyumov-Gerasimenko
Posted inEditors' Highlights

Dancing Dust on Comet 67P/Churyumov-Gerasimenko

by Naomi Murdoch and Laurent G. J. Montési 19 July 202318 July 2023

Cometary activity moves sediments over the surface of 67P/Churyumov-Gerasimenko, with long-term sinks near the poles of the comet.

An artist’s rendering of three hazy rings surrounding the Sun near the orbits of Mercury, Venus, and Earth
Posted inNews

Mercury Isn’t Alone in Orbit, and Scientists Don’t Know Why

by Jure Japelj 27 February 202324 May 2023

A cloud of dust traces the innermost planet’s orbital path. By all accounts, it shouldn’t be there.

Illustration of Stone Age villagers shielding their eyes from a nearby airburst
Posted inNews

Armagedón a 10,000 A.C.

Javier Barbuzano, Science Writer by Javier Barbuzano 4 June 20202 February 2022

Fragmentos de un cometa probablemente golpearon la Tierra hace 12,800 años, y una pequeña aldea del Paleolítico en Siria podría haber sufrido el impacto.

Illustration of Stone Age villagers shading their eyes from a nearby airburst
Posted inNews

Armageddon at 10,000 BCE

Javier Barbuzano, Science Writer by Javier Barbuzano 30 March 20202 February 2022

Fragments of a comet likely hit Earth 12,800 years ago, and a little Paleolithic village in Syria might have suffered the impact.

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Features from AGU Publications

Research Spotlights

Heat and Pollution Events Are Deadly, Especially in the Global South

14 May 202514 May 2025
Editors' Highlights

Resilient Solutions Involve Input and Data from the Community

14 May 202514 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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