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Sun news: CME arrivals expected, G1 storm possible
Sun news for June 14, 2026: CME arrivals expected today. G1 storm possible. Aurora may reach Seattle and Edinburgh. Coronal hole stream adds fuel. Stay alert!
June 14, 2026
Sun activity archive for May 2026
Sun activity archive for May 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
May 1, 2026
Slow solar wind is oddly fast, says Proba-3
Early data from the Proba-3 spacecraft has revealed that slow solar wind travels much faster than expected in the sun's inner corona.
April 26, 2026
What are coronal mass ejections? Big burps of sun-stuff!
Coronal mass ejections (CMEs) are powerful eruptions on the sun that can disrupt electrical systems and produce brilliant auroral displays on Earth.
April 24, 2026
Sun activity archive for April 2026
Sun activity archive for April 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
April 1, 2026
Russell-McPherron effect gives us an aurora season: More auroras at equinoxes
There's an aurora season around the equinoxes, due to the way the magnetic fields of the sun and the Earth work in conjunction with sun-Earth geometry.
March 3, 2026
Sun activity archive for March 2026
Sun activity archive for March 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
March 1, 2026
Sun activity archive for February 2026
Sun activity archive for February 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
February 1, 2026
Severe geomagnetic storm! What happened to the auroras?
A powerful blast from the sun triggered a severe geomagnetic storm on the night of January 19, but the auroras weren't as dazzling as hoped. Here's why.
January 20, 2026
Sun activity archive for January 2026
Sun activity archive for January 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
January 1, 2026
