Sun activity for November 30 is low, but excitement is on the way to Earth! Four coronal mass ejections should bring auroras late tonight and tomorrow night.
Check out amazing eclipse photos from the EarthSky community. From the partial phase to annularity to eclipse crescents on the ground, see great moments here!
Researchers analyzing tree rings discovered the biggest solar superstorm known so far. If it hit today, it would wreck some critical human infrastructure.
Hear from a ham radio operator about how solar eclipses temporarily affect Earth's upper atmosphere, or ionosphere. Eclipses can disrupt radio signals and GPS in the region where the eclipse is passing.