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comets

A bright white point is surrounded by a large, soft blue glow that fades gradually into a dark background. Thin, faint streaks appear diagonally across the image, suggesting motion or stars in the distance. The overall effect is of a luminous object in space, radiating light against a deep, dark backdrop.
Posted inNews

Interstellar Comet Was Born in a Very Cold Place

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 7 May 20267 May 2026

3I/ATLAS’s chemistry suggests that it formed in a much colder environment than our solar system did.

A large observatory on a mountaintop with a starry sky in the background.
Posted inFeatures

Small, Faint, or Fast, Rubin Will Find It

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 1 April 20261 May 2026

The Vera C. Rubin Observatory is set to redraw the map of the solar system by discovering millions of small, fast-moving objects hidden all around us.

A comet with a compact coma and a short tail in front of a background of stars.
Posted inFeatures

How an Interstellar Interloper Spurred Astronomers into Action

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 9 September 202510 February 2026

Valuable lessons from previous interstellar objects allowed scientists to develop a more rapid response when the third one arrived in July.

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 inENGAGE, News

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.

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

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