A Japanese satellite reveals rapid and surprisingly frequent transport of molecular ions from the ionosphere to the magnetosphere, under not only extreme but also moderate geomagnetic conditions.
Space & Planets
Posted inNews
Our Seismic Solar System
Earth’s not the only thing that shakes and quakes and goes around the Sun. Not by a long shot.
Posted inNews
Nearby Asteroid Is Mysteriously Devoid of Dust, Lander Reveals
Close-up images of Ryugu, a near-Earth asteroid and the target of the Hayabusa2 sample return mission, reveal a rocky, dustless world that may have formed from a giant collision.
Posted inAGU News
A New Approach to New Worlds
This month we look around our solar system—and much farther—as we celebrate AGU’s Centennial.
Posted inNews
Hunting for Planets Around Old, Anemic Stars
Can a star make planets with 10% of what the Sun had to work with? A synergy between two powerhouse survey telescopes is helping astronomers find that answer.
Posted inNews
Researchers Reproduce Processes Behind Astrophysical Shocks
Studying shock precursors in a laboratory setting enables researchers to take a different look at the precursors’ properties and the physics behind them.
Posted inNews
Goldilocks Meteors Carved into Cones
Their “just right” shape lends some shooting stars flight stability and symmetry.
Posted inEditors' Highlights
Newly Discovered Electric Current System Very Close to Saturn
In the tightly confined region between the innermost ring and the planet’s upper atmosphere, the Cassini spacecraft observed signatures of a previously undetected current system.
Posted inNews
Nearest Star System May Have a Second Planet
The exoplanet candidate, tentatively named Proxima c, would be a frozen snowball.
Posted inResearch Spotlights
Sampling the Space Between the Stars
Data from the Cassini and Voyager spacecraft reveal new information about the Sun’s magnetic bubble.