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Sun news: Large coronal hole turns toward Earth
Sun news July 18, 2026: The sun is entering a lull period. But a large coronal hole, transequatorial, emerged from the east.
July 17, 2026
Sun activity archive for June 2026
Sun activity archive for June 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
June 1, 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
