The stormy sun erupts with its biggest solar flare yet from a massive sunspot — and it's still crackling (video) - Space.com
- The stormy sun erupts with its biggest solar flare yet from a massive sunspot — and it's still crackling (video) Space.com
- Solar storm: How do the Northern Lights happen? BBC
- How a giant sunspot created aurora mayhem this weekend Space.com
- 'Solar Superstorm' Auroras Look Set To Persist As Sun Unleashes Another X-Class Flare Forbes
- Solar storm hits Earth, producing northern lights in US The Associated Press