Manganese deposits in Gale Crater fractures are similar to Earth features that usually require flowing water and highly oxidizing conditions.
Geophysical Research Letters
Posted inResearch Spotlights
Going Against the Flow: Documenting Seasonal Current Reversal
Scientists discover the source of a coastal Korean current that reverses its flow in the summer.
Posted inResearch Spotlights
Tackling the Paris Temperature Targets
The global temperature targets established in Paris in 2015 are ambitious; new research examines what it would take to achieve those targets.
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 inAGU News
New Geophysical Research Letters Editorial, Revisions Policies
Changes in submittal, editorial, and review policies support high standards and timely publication in the face of the increasing number of papers submitted.
Posted inResearch Spotlights
Volcanic Eruptions Stir an Already Complex Atmosphere
A study of Earth's atmospheric response to major volcanic eruptions seeks to reconcile contradictions between observations and climate models.
Posted inResearch Spotlights
Venus's Unexpected, Electrifying Water Loss
New research shows that an electric field surrounding Venus is stripping its atmosphere of water—and the same phenomenon may plague exoplanets scientists hope might be habitable.
Posted inResearch Spotlights
Monster El Niño Not Enough to Quench California Drought
New research shows that the Sierra Nevada snowpack will likely not recover from the current drought until 2019.
Posted inResearch Spotlights
Arctic Survey Hunts for Missing Nitrogen and Phosphorus
A new survey of ocean waters flowing in and out of the Arctic may shed light on how dissolved organic nitrogen and phosphorus contribute to nutrient cycling in the Arctic.