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Solar Activity

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Helioseismology Study Finds Shifting Solar Interior Across Quiet Cycle Minima

Findings from BiSON's 40-year record single out the 2008–2009 deep minimum as a distinct internal state with value for forecasting.

New X4.2 Solar Flare Erupts From AR4366 as Earlier CME Nears Earth

ESA Stress-Test Simulates Carrington-Scale Solar Storm Ahead of Sentinel-1D Launch

Simulations Reveal Space Tornadoes That Current Monitors Miss, Prompting Solar‑Sail Probe Concept

Hawaiʻi Researchers Pin Down Why the Sun Has "Rain" During Flares

Inouye Solar Telescope Resolves Solar Flare Loops as Thin as 21 Kilometers

NASA and IBM Release Surya, Open-Source AI for Two-Hour Solar Flare Forecasts

NOAA Issues G2 Geomagnetic Storm Watch as AR 4168 CME Nears Earth

NASA’s TRACERS Satellites Poised for Vandenberg Launch to Probe Solar-Earth Magnetic Link

X2.7 Solar Flare Prompts Global Disruptions and Aurora Forecasts