A new study explores the possibility of cubic iron alloy structure at our planet's core.
unsolved mysteries
Posted inResearch Spotlights
New Clues to Mysterious Hiss in Earth's Plasmasphere
An analysis of the electromagnetic "hiss" that surrounds Earth reveals it's not just static; there's a signal hidden within, which may help scientists uncover its source.
Posted inNews
Astrobiology Hearing Ranges Beyond Life as We Know It
Space research has made strides identifying where extraterrestrial life might reside but not what kind of life, if any, it could be, scientists told Congress last week.
Posted inNews
Birds Ignore Volcano Blast, Puzzle Scientists
When a nearby volcano unexpectedly erupted in the midst of a behavioral study of Andean condors in Argentina, the researchers scrambled to observe disruption to condors' lives. Oddly, there was none.
Posted inResearch Spotlights
What Formed These Curious Ripples on Mars?
Dunes, ridges, or something else? Scientists seek to understand the origins of transverse aeolian ridges.
Posted inResearch Spotlights
Newly Discovered Properties of Elusive Gamma Ray Flashes
The properties of terrestrial gamma ray flashes have eluded scientists for years. This new study sheds light on how they originate.
Posted inScience Updates
Dispelling Clouds of Uncertainty
How do you build a climate model that accounts for cloud physics and the transitions between cloud regimes? Use MAGIC.
Posted inResearch Spotlights
What Causes Sunspot Pairs?
Analysis of magnetic fields on the Sun's surface offers a new clue on why sunspots appear.
Posted inResearch Spotlights
Conquering Uncertainties in Tropical Climate Forecasts
The key to better predictions of atmospheric temperature trends in the tropics may lie in more accurate measurements of sea surface temperatures.
Posted inFeatures
Why Does the Aurora Flare Up?
The spectacular auroras that circle Earth's geomagnetic poles and burst with colorful displays during geomagnetic storms have mystified humanity for millennia. Now scientists are uncovering their secrets.