One picture taken on December 7, 2019, shows an active ring of fire burning in the dead of night to the west of Newcastle, Australia.
Another satellite image taken on December 8, reveals clouds of carbon monoxide (CO) being released into the atmosphere by the fires.
NASA said: “Normal levels of CO are less than 2 on this scale.
“Released by the burning of plants and fossil fuels, carbon monoxide is an odourless gas that is dangerous to breathe; it also can lead to the formation of ground-level ozone.
“Higher in the atmosphere, CO is a signal of the amount of greenhouse gas being pumped into our ever-warming air.”
Plumes of smoke were also seen rising from New South Wales on November 14 last year.