English: Dozens of fires (red pixels) were burning in Vietnam, Laos, and Cambodia on April 2, 2002. There was a particularly large fire just southwest of Ho Chi Minh City near the southernmost tip of Vietnam. Note the large, grey smoke plume blowing westward in this scene.
This image was acquired by the Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard NASA's Terra satellite.
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [3]