![TOMS image of dust](images/media/library_009_lg.jpg)
NASA’s TOMS (total ozone mapping spectrometer) detects dust streaming from Northern China to the United States (red is highest concentration; green is lowest). Photo © Colin Seftor (Raytheon) and Christina Hsu (UMBC)
NASA’s TOMS (total ozone mapping spectrometer) detects dust streaming from Northern China to the United States (red is highest concentration; green is lowest). Photo © Colin Seftor (Raytheon) and Christina Hsu (UMBC)