摘要
In November 2022,Airbus(Leiden,the Netherlands)sent into orbit the third and fourth of its Pléiades Neo earth-observing satellites,giving the aerospace giant one of the most advanced veryhigh-resolution(30 cm)commercial optical constellations to date[1](Fig.1).The satellites,which will capture 2×10^(6) km^(2) of land every day and deliver data at unprecedented speed,exemplify the mainstreaming of satellite imagery,once the sole domain of military and governments and now tracking to be a 12.5 billion USD business within the next decade[2].
