Yellowstone smells like sulfur, boils with heat, and vents enormous volumes of gas – yet one of volcanology’s most important signals is missing. The near-absence of sulfur dioxide reveals why Yellowstone’s magma stays deep, quiet, and chemically transformed long before reaching the surface.
New analyses of interstellar comet 3I/ATLAS show that this rare visitor is a carbon-rich, metal-bearing body with an unusually bright coma dominated by carbon dioxide, suggesting a complex chemistry possibly linked to catalytic and cryovolcanic processes.
Researchers from the Institute of Science and Technology Austria (ISTA) and collaborators have identified a previously unknown cyclic climate pattern, the tropics-wide intraseasonal oscillation (TWISO), evident across tropical regions on 30–60-day timescales. The discovery, described as one of the most significant advances in climate dynamics, may help improve medium-range forecasts by revealing a predictable rhythm in tropical activity.
ESA scientists analysing a decade of Swarm satellite data have found that equatorial GPS signal disruptions follow a universal mathematical law describing many natural systems, suggesting the ionosphere behaves as a self-organising complex system.
Astronomers confirmed the first coronal mass ejection ever observed from another star at about 130 light-years away, using LOFAR and XMM-Newton, according to research published this week in Nature.
A study published in Geophysical Research Letters reveals that blue auroral emissions over Kiruna, Sweden, on October 21, 2023, reached an altitude of 200 km (124 miles), far exceeding predictions from established atmospheric models.
Data from ESA’s Solar Orbiter, published on November 5, 2025 in The Astrophysical Journal Letters, show magnetic fields at the Sun’s south pole flowing toward the pole at 10–20 m/s (33–66 ft/s). The discovery overturns decades of theory about how the Sun’s magnetic field circulates.
Researchers have identified satellite-detected magnetic anomalies up to eight days before the M7.7 earthquake that struck Myanmar on March 28, 2025, according to a study published in Scientific Reports on October 22, 2025.
A solar flare of extraordinary intensity erupted from Active Region 10486 at 19:29 UTC on November 4, 2003, overwhelming every X-ray detector in orbit and leaving scientists temporarily blind to its true scale. Only later would they learn it reached about X45 — the most powerful ever measured in the Space Age. Its radiative power rivaled that of the 1859 Carrington Event, yet most of its debris was ejected harmlessly sideways into space. Had Active Region 10486 faced Earth, researchers estimate the geomagnetic index Dst could have dropped below –850 nanoteslas — enough to trigger a planetary-scale power-grid collapse.
Fragmented aurora-like emissions and picket fence structures were simultaneously observed over northern Scandinavia during a geomagnetic storm on January 1, 2025, marking the first recorded coexistence of these two rare phenomena within auroral latitudes. The discovery adds to the growing understanding that Earth’s upper atmosphere is far more dynamic than once thought, with electric-field structures that can stretch over thousands of kilometres but reorganize in seconds.
