Mysterious twin of STEVE aurora discovered in Norway

Mysterious twin of STEVE aurora discovered in Norway

A new auroral phenomenon, potentially a twin of the STEVE aurora, was discovered in Norway on December 28, 2021. The finding, confirmed by ESA’s Swarm satellite data, reveals an eastward stream of hot gases at dawn, similar to the westward stream seen at dusk.

ESA’s SMOS and Swarm observe strongest geomagnetic storm since 2017

ESA’s SMOS and Swarm observe strongest geomagnetic storm since 2017

The European Space Agency’s SMOS and Swarm satellites have, for the first time, successfully tracked a severe solar storm, following an X1.1 solar flare and a halo coronal mass ejection (CME) on March 23, 2024. The CME impacted Earth on March 24, producing a G4 – Severe geomagnetic storm — the strongest geomagnetic storm since September 2017.

Decade of Swarm satellite data unveils new insights into Earth’s magnetic field and core dynamics

Decade of Swarm satellite data unveils new insights into Earth’s magnetic field and core dynamics

Launched in 2013, the European Space Agency’s (ESA) Swarm mission, consisting of three satellites, has provided a decade of invaluable data on Earth’s magnetic field and core dynamics. This data has enabled significant advances in understanding the mechanisms behind the magnetic field’s slow changes, as detailed in a recent ESA-funded project report.

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.

Most detailed map of Earth’s magnetic lithosphere

Most detailed map of Earth’s magnetic lithosphere

European Space Agency's used data provided by their trio of Swarm satellite and combined it with historical data from the German CHAMP satellite and observations from ships and aircraft to produce the most detailed map of the Earth's lithosphere. The map is…

New phenomenon discovered in the night sky

New phenomenon discovered in the night sky

A new phenomenon seen as a giant purple streak of light in the night sky has been recently discovered and, for lack of a better word, named Steve. Steve was discovered thanks to scientists, citizen scientists, ground-based imagers and ESA's magnetic field Swarm…

Birkeland currents stronger in the northern hemisphere, vary with the season

Birkeland currents stronger in the northern hemisphere, vary with the season

ESA’s Swarm mission has discovered that this seasonal variation of Birkeland currents, strong electric currents in the upper atmosphere, is not the same in the north and south polar regions. Named after Kristian Birkeland, the scientist a century ago who first…