On September 15, 2025, the NOAA issued a G3 geomagnetic storm warning due to a large coronal hole on the Sun, which is ...

At G3 the storm is considered "strong", but it is also strengthened by something known as the "Russell-McPherron Effect".

A huge butterfly-shaped hole on the Sun may cause geomagnetic storms and auroras as solar wind heads directly for Earth.

Earth, sun, moon: three objects in space whose interactions have a pretty big impact on our lives. Earth orbits the sun once a year, and it rotates on its axis about once a day (depending on your ...

Earth’s orbit around the Sun isn’t a perfect circle—it’s slightly elliptical. Each year, around July 2 or 3, Earth reaches its farthest point from the Sun, known as aphelion. Around January 2 or 3, ...

A violent solar eruption on May 31 launched a coronal mass ejection (CME) hurtling toward Earth, triggering a rare G4-level geomagnetic storm alert. Captured in real-time by U.S. Naval Research ...

After weeks of reduced activity, the sun erupted with three powerful flares on a single day. That could send solar flares toward Earth, impacting electronics and making it possible to view the ...

The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space ...