The CO2 Sounder: Birth of a Space Laser Instrument

A new carbon dioxide (CO2) laser, which will globally measure carbon dioxide from space, is due to be launched in 2023 on NASA's ASCENDS (Active Sensing of CO2 Emissions over Nights, Days, and Seasons) mission. The main science is to measure how much carbon dioxide there is in the atmosphere at this particular time on the Earth and where is it located.