According to foreign media reports, NASA often publishes some photos showing its photographic ability in a series called “image of the day.”. The latest issue of the series is a satellite image from the western United States that shows a lot of smoke from wildfires. < / P > < p > it is understood that there have been several persistent wildfires in western North America, most of them in California. Last month, these volcanoes were so large that they produced a lot of smoke that swept across the United States and quickly across the ocean to Europe. Although we have a lot of fire images on the ground, which also provide an important viewing angle, it is difficult to distinguish the influence range of fire without looking from a distance. < / P > < p > and that’s what satellites are for. NASA has a number of satellites that focus on earth rather than outer space, which are used to predict possible future weather events and to assess the impact of current and past events. The latest wildfire photos emphasize that. According to NASA, this image was taken by Aqua satellite on September 29, local time. < / P > < p > if you look closely, you can see that this satellite image is very special. It is understood that the left half of the photo is visible light, and the right half is an infrared image showing the heat of the flame. This provides two unique perspectives on the same event and draws people’s attention to the large amount of smoke generated by these fires. There are still severe forest fires in California and the Pacific Northwest, according to NASA. < / P > < p > of these active wildfires, the largest is California’s August complex, which has broken the state’s record and become the largest wildfire in the state’s history. The fire was uncontrollable over nearly a million acres. As a result of the recent change in wind direction, the smoke initially spreading eastward has now reversed its direction and is blowing westward over the Pacific Ocean. Global Tech