Astronomy & Space

Scientists create first 3D map of Sun’s outer magnetic field

How the science connects

MagnetohydrodynamicsMagnetic fieldSolar physics

AI Insight

Researchers have created the first three-dimensional map of the sun's magnetic field that extends beyond its visible surface into the outer atmosphere. This global mapping represents a significant advancement in understanding solar magnetic structures. The achievement is expected to improve modeling of solar activity and enhance capabilities for forecasting solar eruptions.


Solar magnetic eruptions drive extreme space weather events that can damage satellites, disrupt power grids, and interfere with communications systems on Earth. Better predictions of these events would allow operators of critical infrastructure to take protective measures and minimize potential damage to technology-dependent systems.


A team of researchers has produced the first global, three-dimensional estimates of the sun’s magnetic field, including the area beyond the sun’s visible edge. This marks a step toward more accurate models of solar activity—and ultimately, better predictions of solar magnetic eruptions, which are the root cause of extreme space weather that can impact critical infrastructure technologies on Earth.

Source: Sun's outer magnetic field mapped in 3D for the first time