A new analysis of satellite data could upend conventional wisdom about how solar storms produce their dangerous radiation—not from X-shaped mergers of magnetic field lines but from swirling vortices.
satellites
Posted inResearch Spotlights
How Lightning Creates "Killer Electrons" in Earth's Radiation Belts
New calculations show that lightning-triggered plasma waves in Earth's magnetosphere absorb energy from slow particles and energize electrons to levels that can damage satellites severely.
Posted inNews
GOES-16 Satellite Lights Up Lightning Flashes in New Video
The satellite's lightning mapper instrument will help scientists forecast extreme weather.
Posted inEditors' Vox
Global Positioning System Sparks New Data Revolution
Energetic particle data from the Global Positioning System constellation opens avenues for new research.
Posted inScience Updates
Transforming Satellite Data into Weather Forecasts
A NASA project spans the gap between research and operations, introducing new composites of satellite imagery to weather forecasters to prepare for the next generation of satellites.
Posted inOpinions
Why We Must Tie Satellite Positioning to Tide Gauge Data
Accurate measurements of changes in sea and land levels with location and time require making precise, repeated geodetic ties between tide gauges and satellite positioning system equipment.
Posted inNews
The Curious Case of Titan’s Missing Clouds
Two instruments, one region on Titan: One instrument saw clouds, the other didn't—what's going on?
Posted inNews
First of Next Generation of U.S. Weather Satellites Hits the Sky
The novel spacecraft and three sister satellites to follow are expected to vastly improve storm forecasting.
Posted inScience Updates
Coastal Observations from a New Vantage Point
The NASA Geostationary Coastal and Air Pollution Events satellite mission plans to keep an eye on short-term processes that affect coastal communities and ecosystems.
Posted inResearch Spotlights
What Causes GPS Signal Loss on Satellites like Swarm?
Using data from the European Space Agency's Swarm mission, scientists find that abrupt drops in the ionosphere's electron density may cause low-orbiting satellites to lose contact with GPS satellites