CALIPSO – The CALIPSO satellite mission is a joint mission between NASA and CNES (the French space agency) that launched on April 28, 2006. CALIPSO uses an innovative lidar instrument to see small particles such as dust, smoke, pollution and thin clouds that are often invisible to radar and the human eye. The lidar sends a series of short light pulses down through the atmosphere, and a fraction of them return to the satellite. Learn more.
Discover Air Quality – DISCOVER-AQ – A four-year campaign to improve the use of satellites to monitor air quality for public health and environmental benefit. The mission began in 2011 with targeted airborne and ground-based observations continued until 2014. Learn more.
SAGE III on ISS is a key part of NASA’s mission to provide crucial, long-term measurements that will help humans understand and care for Earth’s atmosphere. Just like humans need to use sunblock, the Earth needs protection too. Learn more.
Suomi-NPP is NASA’s newest Earth-observing research satellite. It is the first of a new generation of satellites that will observe many facets of our changing Earth. Learn more.
The Aqua mission is a part of the NASA-centered international Earth Observing System (EOS). Aqua was formerly named EOS PM, signifying its afternoon equatorial crossing time. Learn more.
The Tropical Rainfall Measuring Mission (TRMM) is a joint mission between NASA and the Japan Aerospace Exploration Agency (JAXA) designed to monitor and study tropical rainfall. Learn more.
NASA launched the Earth Observing System’s flagship satellite “Terra,” named for Earth, on December 18, 1999. Since then Terra has been collecting data about Earth’s changing climate. Learn more.