The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASAs Aqua satellite acquired this image of the fires around Sydney, Australia at 2:50 p.m. (3:50 UTC) on October 17. Fires that MODIS detected are outlined in red. In addition to the threat posed by the fires, the image shows that smoke pollution was a problem in populated coastal communities. The densest plume of smoke hangs directly over Sydney, though the brighter white streak is probably a cloud.The largest of the fires shown here is the State Mine fire, burning in the Blue Mountains near the Lithgow area. The fire has burned more than 20,000 hectares and has damaged an unknown number of properties, said the New South Wales Rural Fire Service.To the southeast is the dangerous Linksview Road fire, which was burning near the community of Springwood. Thousands of people have been evacuated because of this fire and the State Mine fire, and all impacted communities have received emergency warnings. Between the two fires, hundreds of homes may have been destroyed, reported ABC News. The third large fire in the image is the Hall Road fire, Balmoral Village. Despite its size, it has caused little damage and is nearly under control. It may be a few days before the other fires are under control. Weather conditions are expected to improve, but the fire danger will remain high for the next couple of days. AFP PHOTO / NASA / JEFF SCHMALTZ /AFP/Getty Images ( 523883005 )