That’s a #FaithInHumanityRestored post :-)
In the past months, a volonteer group of the [Humanitarian OpenStreetMap][https://www.hotosm.org/] project have used satellite data to improve the OpenStreetMap data n different African countries. The aim was to improve the available map data to fight Malaria.
If you also like that such things happen, you might consider retweeting this tweet to spread the word.
Do good and tell about it!