Widespread declines in ocean oxygen concentrations are now being reported with authors offering quite different explanations. Which ones are correct?
unsolved mysteries
Posted inResearch Spotlights
Reckoning with Climate’s Most Challenging Questions
Climate researchers outline a vision for the future of climate observations.
Posted inResearch Spotlights
Accounting for the Missing Silica in the Marine Sediment Cycle
Cosmogenic silicon-based estimates of the amount of biogenic silica stored in clays along continental margins could explain the large discrepancy in the nutrient’s global marine budget.
Posted inNews
Modern Chemicals from Mystery Source Taint Fish in Utah Lake
Utah Lake’s fish contain high levels of a potential carcinogen. Could removing some bottom-feeders reduce this contamination?
Posted inResearch Spotlights
Resolving a Mystery of the Ages
High-precision radiometric dates shed new light on the puzzling 600,000-year disparity in the timing of one of Earth’s most pivotal timescale boundaries.
Posted inNews
Mystery Quakes May Be Among World’s Longest-Lived Aftershocks
New evidence about where a major earthquake struck central Washington State 145 years ago raises the possibility that today’s unusually frequent quakes in the area still echo that 1872 event.
Posted inResearch Spotlights
Simulations Give New View of Global Auroral Storms
New computer models capture the movement of the strongest auroral storms as they sweep across Earth at night, challenging scientists’ views of what drives them.
Posted inScience Updates
Resolving a Methane Mystery in the Arctic
International Workshop to Reconcile Methane Budgets in the Northern Permafrost Region; Seattle, Washington, 7–9 March 2017
Posted inResearch Spotlights
Mysterious Intraseasonal Oscillations in Monsoons
The unpredictable cycles of rainfall during India's summerlong monsoon have stymied scientists for decades.
Posted inResearch Spotlights
Explaining Unexpected Twists in the Sun's Magnetic Field
New research shows how the Sun's magnetic field can shift when it approaches Earth, which can throw off space weather forecasts.