From the January 2010 issue

Do stars experience the same phenomena as our Sun, such as sunspots, prominences, solar wind, and flares?

Mark Narwa, Ottawa, Ontario
By | Published: January 25, 2010
March 2010 flares
Flares, prominences, sunspots, and solar wind are not limited to our Sun. Other stars also portray such magnetic phenomena.

They sure do, at a strength that depends on the star’s mass and age.