The first images taken from a satellite built in Stevenage will be beamed back to earth today.
The Sentinel 5-P was built by Airbus Space and Defence to monitor pollution levels. It will also show power stations, cities and even the Bali volcano explosion.
It was launched back in October shortly after a World Health Organisation warning that pollution is a greater global threat than Ebola and HIV.
It is able to map gases including nitrogen dioxide, ozone, formaldehyde, sulphur dioxide, methane, carbon monoxide and aerosols.