This "corornal mass ejection" will also be heading towards Mars and on the way, envelop our latest Mars Rover, which is enroute. The Rover has instruments for measuring a CME: this may be a great chance for humanity to learn.
And finally - before you click through below and get all the details - these big solar eruptions cause the earth's atmosphere to swell. Thus some of the junk orbiting the earth will be in a bit of atmosphere instead of airless space. The air makes the junk slow down and then burn up.
In other words, the sunspot eruption serves as a clean-up tool for our planet.
