Metals from spacecraft reentry don’t simply vaporize and vanish. Scientists found them in the stratosphere.
Space & Planets
Posted inNews
Arrokoth’s Mounds Hint at How Planetesimals Form
The most remote world ever seen up close is a mash-up of smaller pieces.
Posted inNews
Solar Storms May Scramble Signals for Migratory Birds
Birds use Earth’s magnetic field to migrate, but severe space weather may interfere with navigation and reduce the number of birds in the sky.
Posted inNews
The Moon Is Even Older Than Scientists Thought
How did the Moon form and how old is it? The most precise dating yet of Earth’s largest satellite found that it is much older than previously thought.
Posted inENGAGE, News
Five Martian Mysteries That Have Scientists Scratching Their Heads
Despite centuries of study and many spacecraft visits, the Red Planet still holds secrets. Here are just a few.
Posted inEditors' Highlights
Where the Wild Marsquakes Are
A new analysis of the seismic data gathered by the InSight lander reveals that marsquakes occur across a much larger area of the planet than previously believed.
Posted inEditors' Vox
Foundations in Data Analysis for Undergraduate STEM Students
A new textbook serves as an initial course in scientific data analysis and hypothesis testing designed for students in all science, technology, engineering, and mathematics disciplines.
Posted inNews
Rogues’ Gallery Comes in Pairs
A new trove of free-floating planets, smaller and paired up more than expected, challenges stellar and planet formation models.
Posted inNews
La canción de hielo y fuego del criovulcanismo
Las lunas oceánicas del sistema solar exterior nos dan pistas sobre volcanes de hielo, fuentes hidrotermales, y la tentadora posibilidad de habitabilidad.
Posted inResearch Spotlights
Aurora Records Reveal Shortened Solar Cycle During Maunder Minimum
Fastidious night sky observations from Korean historical texts provide a novel source of evidence for an altered solar cycle during periods of low magnetic activity.