Manganese deposits in Gale Crater fractures are similar to Earth features that usually require flowing water and highly oxidizing conditions.
Sarah Stanley
Sarah Stanley, a freelance writer for Eos, has a background in environmental microbiology but covers a wide range of science stories for a variety of audiences. She has also written for PLOS, the University of Washington, Kaiser Permanente, Stanford Medicine, Gladstone Institutes, and Cancer Commons, a nonprofit that works with cancer patients.
Posted inResearch Spotlights
An Ancient Sea Once Separated the Pacific and Indian Oceans
Seafloor under the hypothesized East Asian Sea vanished 10 million years ago as surrounding plates swallowed it up, according to new reconstructions of plate tectonics in the Philippine Sea region.
Posted inResearch Spotlights
A New Mechanism for Nitrogen Cycling in the Southern Ocean
A nitrite-oxidizing enzyme may work in reverse for some microbes in the Antarctic autumn.
Posted inResearch Spotlights
How Irrigation in Asia Affects Rainfall in Africa
Up to 40% of the total rainfall in arid parts of East Africa may be caused by water vapor from farming practices in South Asia.
Posted inResearch Spotlights
In the Eastern Pacific Ocean, the "Blob" Overshadows El Niño
Underwater gliders and ocean modeling reveal unexpectedly weak El Niño effects on a major West Coast current.
Posted inResearch Spotlights
Reconstructing Catastrophic Floods on Earth and Mars
A new theoretical model suggests that ancient floods that carved canyons on Earth and Mars may have been much smaller but lasted longer than previously thought.
Posted inResearch Spotlights
Tracking Down Elusive Origins of Kazakhstan's 1889 Chilik Quake
New fieldwork and satellite data suggest that three faults may have caused a large earthquake near Almaty, Kazakhstan, more than a century ago.
Posted inResearch Spotlights
A (Dust) Devil of a Time—on Mars
New computer simulations of Martian dust devils could aid Red Planet weather forecasts.
Posted inResearch Spotlights
Predicting Temperature Shifts off the U.S. East Coast
New research reveals the relative importance of oceanic and atmospheric processes in year-to-year changes in ocean temperature along the Middle Atlantic Bight.
Posted inResearch Spotlights
Defining the Onset and End of the Indian Summer Monsoon
A new, objective definition of the onset of the summer monsoon could improve predictions of rainfall in India.