That is not a nasty fungal skin infection you are looking at. It is the surface of our own little star, the sun. The roundish black spot, rather than being a few centimetres in diameter is, in fact, roughly the size of Jupiter.

This is sun spot 652, the largest and most dramatic sun spot for some time and we can expect it to have a largely predictable effect on earth, that is, to bombard us with cosmic radiation from solar flares with the associated disruption to the satellite television reception etc.

In the course of which it will cause more global warming than the human population has contributed in the last 50 years. It is important for us to be concerned about our carbon emissions but we need to keep in the back of our minds the insignificance of the contribution that the human population makes to universe.

Read more at SpaceWeather.com