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Space & Planets

A view from above of a set of interlocking ridges running through a landscape.
Posted inNews

Cracks on Planetary Surfaces Hint at Water

Katherine Kornei, Science Writer by Katherine Kornei 17 April 202517 April 2025

Imagery of fractured terrain on Venus, Mars, and Jupiter’s moon Europa pinpoints environments influenced by water.

Photo of a Martian crater.
Posted inEditors' Highlights

Geophysics Sheds Light on Early Martian Water and Habitability

by Michael M. Sori 15 April 202511 April 2025

A new study uses inversions of orbital gravity and magnetic field data to argue for the presence of ancient, long-lasting hydrothermal systems on Mars.

An illustration of a space telescope in front of a purple galaxy
Posted inResearch & Developments

NASA Science Faces an “Extinction-Level Event” with Trump Draft Budget Proposal

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 11 April 20255 May 2025

The initial draft of President Donald Trump’s budget request proposes devastating cuts to NASA’s science research, future space missions, and field centers.

Four seemingly identical, octagonal, disklike structures, each with several various thin antennas extending outward at various angles, appear to be floating in a closely spaced cluster in space. In the background, on the right side of the image, is the round shape of the planet Earth, encircled by translucent, overlapping blue and purple lines.
Posted inResearch Spotlights

New Insights into an Enigmatic Form of Magnetic Reconnection

Sarah Stanley, Science Writer by Sarah Stanley 11 April 202511 April 2025

A new study deepens understanding of magnetic field behavior recently discovered by NASA in Earth’s magnetosphere.

A boxy machine with legs at its corners sits atop a battered gray landscape.
Posted inNews

Lunar Ice Might Be Easier to Reach Than We Thought

Damond Benningfield, Science Writer by Damond Benningfield 11 April 202511 April 2025

An instrument aboard the Vikram lander suggests that buried water ice could be found at higher latitudes, making it more abundant and easier to extract than previously believed.

A two-panel horizontal image. On the left is Neptune observed by the Hubble Space Telescope. It is a blue circle, tilted about 25° to the left. There are white smudges at 7 o’clock and just above 5 o’clock. At right is an opposing view of the planet, using data from Hubble and JWST. It is a multihued blue orb. There are white smudges in the same spots as the image on the left but also at the center of the planet and at the top. There are cyan smudges vertically along the right side, and the top of these areas is more translucent than the bottom.
Posted inNews

After 30-Year Search, Scientists Finally Find an Aurora on Neptune

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 April 202510 April 2025

The planet’s elusive aurorae are much colder than expected, which is how they evaded detection for so long.

Diagram from the study.
Posted inEditors' Highlights

Martian Magmas Live Long and Prosper

by Mariek E. Schmidt 10 April 20259 April 2025

The depths, longevity, and potential to generate silicic compositions of magma chambers are linked to crustal temperature, which varies across Mars and over its geological history.

Big chamber where scientists were able to conduct the mud experiments
Posted inNews

Salt May Be Key to Martian Mudflows

by Larissa G. Capella 9 April 2025

Mars probably has mud volcanoes, and salt might be the ingredient that keeps the flow going.

Diagram from the study.
Posted inEditors' Highlights

Fast Flows in Earth’s Magnetotail Surveyed by NASA Satellites

by Mary Hudson 9 April 20253 April 2025

A survey of high-speed electron flow observed by NASA satellites in the Earth’s magnetotail is presented and related to the process of magnetic field line reconnection and particle acceleration.

Posted inNews

Asteroid Samples Suggest a Solar System of Ancient, Salty Incubators

by Molly Herring 2 April 20252 April 2025

The discovery of salty mineral evaporites on Ryugu indicates that watery environments may have been widespread in the early solar system.

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Features from AGU Publications

Research Spotlights

Magnetic “Switchback” Detected near Earth for First Time

8 October 20258 October 2025
Editors' Highlights

New Evidence for a Wobbly Venus?

29 September 202525 September 2025
Editors' Vox

All Publish, No Perish: Three Months on the Other Side of Publishing

29 September 202525 September 2025
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