Also FYI here's the world's easiest explanation of what an Aurora is. The sun 'burps', the wind is magnetically charged particles, the wind hits us & is drawn back into the poles. Thank GOD for our iron core & magnetosphere or we'd be like Mars without an atmosphere. youtu.be/HJfy8acFaOg?...

Space Weather and Earth's Aurora

YouTube video by NASA Video

There was a very nice BBC Radio 4 programme a few years ago. In our Time - Solar Wind. "the sun is traveling through the interstellar medium at 25kms per second".

Also, while sharing aurora graphic, Aurorasarus shared this & it's AWESOME & the colours of Aurora explained.