Posts by 

Raúl Cortés

Sun

Sun news: Solar wind could disturb Earth’s magnetic field

Sun news for April 30, 2026: Fast solar wind from a coronal hole could bring G1 (minor) geomagnetic storms tonight. Auroras are possible at high latitudes.
Sun

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.
Sun

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.
Sun

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.
Sun

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.
Sun

Sun activity archive for December 2025

Sun activity archive for December 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for November 2025

Sun activity archive for November 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for October 2025

Sun activity archive for October 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for September 2025

Sun activity archive for September 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for August 2025

Sun activity archive for August 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.