can you explain solar flares in one sentence ??

Question: can you explain solar flares in one sentence ??
- Keywords:
  solar flare
Asked by wewanttim to Tim on 18 Mar 2018.
- Tim Duckenfield answered on 18 Mar 2018:
  
  Imagine a slinky, which represents the Sun’s magnetic field, and you keep twisting and twisting and twisting the slinky until….. SNAP! This releases of lots of energy, just like a solar flare.

Question: can you explain solar flares in one sentence ??