Thanks to last-minute telescope time, researchers pieced together the sequence of events that caused Betelgeuse’s Great Dimming last year.
Space & Planets
Posted inNews
The Possible Evolution of an Exoplanet’s Atmosphere
Scientific sleuths explore data gathered trillions of kilometers away and put forth different, and often conflicting, ideas to reconstruct the gaseous envelope on a distant rocky exoplanet, GJ 1132 b.
Posted inNews
Gap in Exoplanet Size Shifts with Age
Smaller planets are scarcer in younger systems and larger planets are lacking in older systems, according to new research that analyzed hundreds of exoplanets.
Posted inResearch Spotlights
Juno Detects Jupiter’s Highest-Energy Ions
Trapped ions discovered at midlatitudes can have energies exceeding 100 megaelectron volts per nucleon. Their detection adds to our understanding of the powerful radiation environment around Jupiter.
Posted inEditors' Highlights
Fingerprints of Jupiter Formation
Meteorite isotopes, meteorite paleomagnetics, and planet formation models collectively show Jupiter formation via first slow then fast collection of material by core accretion in <5 million years.
Posted inEditors' Vox
Book Publishing in the Space Sciences
An analysis of books in the space science disciplines: AGU’s portfolio, how we compare with other publishers, and how we could grow.
Posted inOpinions
“Earth Cousins” Are New Targets for Planetary Materials Research
“Cousin” worlds—slightly bigger or slightly hotter than Earth—can help us understand planetary habitability, but we need more lab and numerical experiments to make the most of this opportunity.
Posted inOpinions
El Antropoceno marciano
La idea de mandar gente a Marte ha capturado la imaginación del público, pero ¿hemos realmente considerado cómo nuestra presencia alteraría al planeta?
Posted inNews
Fifteen Years of Radar Reveal Venus’s Most Basic Facts
Venus’s heavy atmosphere tugs the planet’s surface enough to change the length of its day by up to 21 minutes.