Sun news October 12: After the storm, a calm. But … coronal holes!

Sun news for October 12, 2024. After Thursday night's big auroral display, Earth's magnetic field is calmer with 3 M flares. Coronal holes take center stage.

Sun activity archive for September 2024

Sun activity archive for September 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.

Probes see fast solar wind getting a magnetic shove

Combined data from ESA and NASA has demonstrated how fluctuations in the sun's magnetic field accelerate and heat the solar wind.

May’s solar storm created a new Van Allen belt

May's solar storm added a new ring - a 3rd Van Allen radiation belt - to Earth. This new Van Allen belt might last from months to years.

Sun activity archive for August 2024

Sun activity archive for August 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.

The next solar cycle – Solar Cycle 26 – is already beginning

Astronomers using helioseismology have peered into the sun to see a pattern indicating the next solar cycle - Solar Cycle 26 - is already beginning.

Precise space storm alerts could help shield Earth’s tech

A new understanding of the heights of magnetic fields in the sun's active regions will lead to precise space storm alerts and help protect technology on Earth.

Sun activity archive for July 2024

Sun activity archive for July 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.

What is the heliosphere and how can we measure it?

The heliosphere is a bubble of solar gas that extends outward and protects the planets from interstellar radiation. Scientists would like a probe to study it.

Sun activity archive for June 2024

Sun activity archive for June 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.