An Indian scientific team set out to sea last year to find clues to the source of an unusually weak gravitational potential in the middle of the Indian Ocean.
unsolved mysteries
If Precipitation Extremes Are Increasing, Why Aren’t Floods?
Improving our understanding of the relationship between changes in precipitation and flooding due to rising temperature is a new grand challenge for the scientific community, argue the authors of a recent commentary.
Before Canadian Scientists Can Study Tornadoes, They Have to Find Them
A yearlong project aims to find more than 150 “missing” tornadoes thought to hit Canada each year.
The Unsolved Mystery of the Earth Blobs
Researchers peering into Earth’s interior found two continent-sized structures that upend our picture of the mantle. What could their existence mean for us back on Earth’s surface?
Observations Show Gravity Waves Above Antarctica Dance in Winter
Year-round observations show gravity waves above Antarctica exhibit seasonal patterns that peak in winter, which could help researchers trace the source of this mysterious phenomenon.
The Akkadian Empire—Felled by Dust?
Chemical measurements of a stalagmite from a cave in Iran reveal a large uptick in dust activity in northern Mesopotamia roughly 4,200 years ago, coincident with the decline of the Akkadian Empire.
Peering into Pores: What Happens When Water Meets Soil?
New research sheds light on the long-standing puzzle of how and why soil water density differs from free water density.
Revisiting Enigmatic Martian Slope Streaks
Slope streaks of different sizes and shapes are a common feature on the surface of Mars, but scientists disagree about the mechanisms for their formation and development.
How Arctic Cyclones Change the Sea Ice
Whirlwinds disrupt the sea ice in the Arctic Ocean. Scientists are now beginning to understand how.
Microbes Rain Down from Above, to the Tune of the Seasons
Every time snow or rain falls, it brings with it microbes from high in the atmosphere. Could those microbes have a seasonal signal, just like the plants on the land below?