(CNN) - Smoke from the fires in Australia is expected to make one "full circuit" around the world and return to the skies over the country, NASA officials are warning.
The space agency has been using a fleet of satellites to analyze the smoke and aerosols coming from the Australia fires. The enhanced image above, created by NASA, shows an RGB “true-color” view of the smoke combined with the UV aerosol index.
After studying smoke plumes from late December, they were able to conclude that the smoke had traveled "halfway across Earth" and has also affected air quality in other countries.
Australia has seen its worst wildfires in decades since the fire season began in late July 2019.
At least 28 people have died and more than 2,000 homes have burned.
Nearly half a billion animals have been impacted by the fires.