not quite real time (I'm not sure if that's even possible) but this is quite up to date. I used to to check out the smoke from last year.
edit: you get pictures every 10 minutes of the whole globe, but the resolution is pretty bad, good enough to check the cloud coverage though
> 10 days at the equator with one satellite, and 5 days with 2 satellites under cloud-free conditions which results in 2-3 days at mid-latitudes
It's up to date zoomed out, but zoomed in seems to be similar to what google maps provides. The picture of the area I live is the same 10 year old picture on google maps, complete with a house that hasn't existed in almost as much time.
At lower zooms, where the copyright is something like "GOES-East", that's more real-time data because it comes from geostationary satellites that can take (low resolution) images every few minutes.