A rising tone in wave frequencies suggests a complicated, nonlinear series of interactions between electromagnetic sound waves and protons near the magnetic equator.
magnetic fields & magnetism
Posted inScience Updates
Making the Northern Indian Ocean a Hub of Geomagnetic Data
A new initiative seeks to unite and network the magnetic research community in the northern Indian Ocean region.
Posted inResearch Spotlights
X Marks the Spot of Magnetic Islands in Space
At the edge of Earth's magnetic field, satellites have found X-shaped fields and fast-moving "islands" of magnetism that could shed light on the physics of solar storms.
Posted inResearch Spotlights
New Insights into Currents in Earth's Magnetic Field
Multisatellite missions give scientists a more complete view of the intense currents that bounce back and forth along our planet's magnetic field lines.
Posted inResearch Spotlights
When the Sun Goes Quiet, Titan Gets Gassy
Observations from NASA's Cassini probe show that the level of methane in Titan's atmosphere depends on the Sun's 11-year cycle of magnetic activity.
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
Scientists Watch Solar Winds Blast Mercury's Magnetic Field
A NASA team used the MESSENGER spacecraft to analyze Mercury's magnetosphere during intense solar wind pressure.
Posted inResearch Spotlights
Large-Scale Electric Currents May Flow Through Mercury’s Crust
NASA's MESSENGER spacecraft discovered electric currents in Mercury's magnetosphere directed toward and away from the planet. Do the currents reach the planet? If so, where do they go?
Posted inResearch Spotlights
Satellite Data Yield Detailed Picture of the Lunar Wake
Researchers use satellite data to characterize the physical properties of the lunar wake and the processes that govern it.
Posted inResearch Spotlights
Can Scientists Boost Solar Modeling Despite a Lack of Data?
Researchers show that a data processing technique could salvage useful information from raw solar observations, opening the door to improved understanding of the solar dynamo.