Major network outages in U.S. following two X-class solar flares

Major network outages in U.S. following two X-class solar flares

A widespread network outage was reported in the United States on Thursday morning, February 22, 2024, following two major eruptions on the Sun, an X1.8 flare at 23:07 UTC on February 21 and X1.7 at 06:32 UTC on February 22. Both erupted from Active Region 3590.

Swarm mission discovers interannual waves in Earth’s core

Swarm mission discovers interannual waves in Earth’s core

Using information from ESA’s Swarm satellite mission, scientists have discovered a completely new type of magnetic wave that sweeps across the outermost part of Earth’s outer core every seven years. The discovery offers a way to probe the cylindrical radial component of the magnetic field inside Earth’s core.

Unsettled geomagnetic field due to CH HSS influences

Unsettled geomagnetic field due to CH HSS influences

Solar wind parameters in 24 hours ending 12:30 UTC today were indicative of a slightly enhanced and disturbed interplanetary magnetic field (IMF) due to weak coronal hole high speed stream (CH HSS) influences. Total IMF strength was variable, but steadily increased…

Geomagnetic storms reaching G2 – Moderate levels, spotless Sun

Geomagnetic storms reaching G2 – Moderate levels, spotless Sun

Earth is again under the influence of a recurrent, positive polarity, northern extension Coronal Hole High Speed Stream (CH HSS). G1 – Minor geomagnetic storm level threshold was reached at 11:55 UTC, followed by G2 – Moderate at 19:21 UTC. Over the past 24 hours,…

The anomaly in the Earth’s magnetic field which has geophysicists abuzz

The anomaly in the Earth’s magnetic field which has geophysicists abuzz

In this interview, EGU's Laura Roberts Artal speaks with Jay Shah, a Ph.D. student at Imperial College London, who is investigating the South Atlantic Anomaly, a patch over the South Atlantic where the Earth’s magnetic field is weaker than elsewhere on the…

Flying through explosive magnetic phenomenon to understand space weather

Flying through explosive magnetic phenomenon to understand space weather

Analyzing data obtained by four identical spacecraft that passed directly through a magnetic reconnection site on the boundary between the solar wind and Earth's magnetosphere, researchers have observed how this explosive physical process converts stored…