Sun-like stars produce 'superflares' about once a century, surprising astronomers who had previously estimated that such events occurred only every 3000 to 6000 years.
Sun-like stars produce superflares roughly once per century
Superflares once per century
Superflares Erupt From Stars Like Our Sun Once Every 100 Years
Superflares once per century - EurekAlert
Could Life at TRAPPIST-1 Survive the Star's Superflares?
Stellar detectives find suspect for incredibly powerful 'superflares'
How Do Superflares Get So Powerful?
Scientists study violent 'superflares' on stars thousands of times brighter than the sun