Minuscule meteoroids slamming into the lunar surface could be kicking up most of the atoms that make up the lunar exosphere.
geochemistry
Posted inFeatures
Sensing Remote Realms of the Deep Ocean on Earth—and Beyond
A novel laser-equipped probe is collecting measurements of deep-sea geochemical environments that once seemed impossible to gather, pointing the way toward future explorations of other ocean worlds.
Posted inNews
Curiosity Digs Up Evidence of a Cold, Wet Martian Past
Amorphous materials, which are rarely studied on Earth, yield insights into the history of Gale Crater and the early Martian environment.
Posted inNews
A Sugar Coating for Arrokoth
A Kuiper Belt object might contain ribose and glucose on its surface—the same elements that could have seeded life on Earth.
Posted inNews
Toxic Metal on the Rise in the Baltic Sea
Postwar reconstruction is likely the cause of elevated thallium levels, but low-oxygen, high-sulfide conditions keep the material, which is extremely dangerous to mammalian health, from moving into the human food chain.
Posted inResearch Spotlights
在土卫二上寻找生命：我们应该问些什么问题？
在冰冷的海洋世界中，建立在有机化学进化理论基础上的研究框架，可能会比仅仅寻找生命存在的直接证据，带来更深刻的见解。
Posted inNews
A Splashy Meteorite Was Forged in Multiple Collisions
The Winchcombe meteorite was recovered, largely from a driveway, just hours after it fell to Earth, preserving evidence that its early relatives could have filled Earth’s oceans.
Posted inFeatures
Confined at Sea at the End of the World
Embedded on a research cruise in the Antarctic, a journalist joins a scientists’ “summer camp.”
Posted inResearch Spotlights
Looking for Life on Enceladus: What Questions Should We Ask?
On icy ocean worlds, a research framework built around the theory of organic chemical evolution could surface deeper insights than a hunt limited to direct evidence of life.
Posted inNews
Last Chance Lake Harbors the Highest Known Levels of Phosphate
Bodies of water such as this might have functioned as cradles of life, given their unique biogeochemistry.