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Space Weather

Strongest Solar Flare of 2025 (X5.1) Triggers Radio Blackouts; NOAA Confirms G4 Geomagnetic Storm

Severe ‘Cannibal’ Solar Storm Hits Earth Today (12 November 2025): NOAA Confirms G4 Levels, ESA Warns of Third CME; UK on Highest Alert and NASA Delays Launch

Published: 12 November 2025 A powerful burst of space weather is sweeping across Earth today, disrupting radio communications, degrading GPS accuracy and setting the stage for another night of widespread aurora. The U.S. National Oceanic and Atmospheric Administration (NOAA) confirms
12 November 2025
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G4 ‘Severe’ Solar Storm Today (Nov. 12, 2025): X5.1 Flare Triggers Radio Blackouts; Northern Lights Stretch From Mexico to Australia

G4 ‘Severe’ Solar Storm Today (Nov. 12, 2025): X5.1 Flare Triggers Radio Blackouts; Northern Lights Stretch From Mexico to Australia

What’s happening now The U.S. National Oceanic and Atmospheric Administration (NOAA) reports that G4 (Severe) geomagnetic storm levels were reached at 01:20 UTC on Nov. 12 and that G1–G4 conditions could continue overnight, driven by successive coronal mass ejections (CMEs). NOAA
12 November 2025
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Sky on Fire Tonight: Giant ‘Solar Canyon’ Aims 800‑km/s Wind at Earth—Northern Lights Could Ignite 15 U.S. States & Test Global Tech

NOAA Issues G4 ‘Severe’ Geomagnetic Storm Watch for Nov. 12 After X5.1 Solar Flare — Northern Lights Possible as Far South as Indiana Tonight (Nov. 11)

Published: November 11, 2025 Key takeaways What changed today (Nov. 11) NOAA’s Space Weather Prediction Center (SWPC) posted a G4 (Severe) watch for Nov. 12, citing multiple coronal mass ejections (CMEs) now en route — including the most energetic, linked
11 November 2025
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Earth’s Magnetic Field Today (Nov. 11, 2025): Equatorial Polarity Twist, South Atlantic Anomaly Expands, and NOAA Issues G2–G3 Geomagnetic Storm Watches

Earth’s Magnetic Field Today (Nov. 11, 2025): Equatorial Polarity Twist, South Atlantic Anomaly Expands, and NOAA Issues G2–G3 Geomagnetic Storm Watches

Updated: November 11, 2025 Key points What’s new today Geomagnetic storm watches (Nov. 11–13): The U.S. National Oceanic and Atmospheric Administration (NOAA) says several coronal mass ejections are expected to begin arriving later today, prompting watches for G2 (Moderate) on
11 November 2025
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Sky on Fire Tonight: Giant ‘Solar Canyon’ Aims 800‑km/s Wind at Earth—Northern Lights Could Ignite 15 U.S. States & Test Global Tech

Sky on Fire Tonight: Giant ‘Solar Canyon’ Aims 800‑km/s Wind at Earth—Northern Lights Could Ignite 15 U.S. States & Test Global Tech

NOAA’s Space Weather Prediction Center issued a G2 (moderate) geomagnetic‑storm watch for the night of 25 June 2025. A negative-polarity coronal hole crossing the Sun’s central meridian is releasing plasma at roughly 500–800 km/s toward Earth. The fast solar wind
25 June 2025
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Solar Tempests & Orbital Guardians: The Secret Life of Space-Weather Satellites

Solar Tempests & Orbital Guardians: The Secret Life of Space-Weather Satellites

1859: British astronomer Richard Carrington observed a powerful solar flare, and within a day telegraph systems worldwide went haywire while auroras appeared near the equator—the Carrington Event, the largest geomagnetic storm on record. During the 1957–58 International Geophysical Year, Explorer-1
20 June 2025
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