![]() ![]() ![]() Low-light signals are amplified and bright lights are kept from being over-saturated. For each pixel, it uses a low-, medium- or high-gain mode to accurately depict the light from each source. The VIIRS instrument works by scanning in 22 different wavelength bands. The sensor has six times better spatial resolution and 250 times better resolution of lighting levels than anything that came before it. It can detect auroras, wildfires, the reflection of moon and star light off clouds and ice and the lights alongside highways. It can resolve everything from the nocturnal glow of the atmosphere to the light of a single boat at sea. The Visible Infrared Imaging Radiometer Suite has a "day-night band" that can detect natural and man-made light with unprecedented resolution and clarity. These super-high-resolution images, made possible by a new type of infrared sensor on the satellite, were revealed here at the American Geophysical Union conference Dec. More Earth From Space: Earth as Art: Stunning Images From Space Strange, Beautiful, Unexpected: Planned Cities From Space The space agency makes new maps of night lights about every decade.SAN FRANCISCO - The Earth at night looks more beautiful than it ever has before in these incredible new images from NASA's Suomi NPP satellite. ![]() The Nile River at night (Image Credits: NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA's Goddard Space Flight Center) "A team at the United Nations has already used night lights data to monitor the effects of war on electric power and the movement of displaced populations in war-torn Syria," NASA notes. (Image Credits: NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA's Goddard Space Flight Center) NASA believes there are plenty of benefits to nighttime photography from space, including tracking power outages after major storms, monitoring unregulated fishing and looking at ways to reduce light pollution. Scientists say these maps, generated by satellites on moonlight-free nights, are "providing the clearest yet composite view of the patterns of human settlement." The Earth at night in 2016 (Image credits: NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA's Goddard Space Flight Center) ![]()
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