CloudSat
![CloudSat CloudSat](https://nasa3d.arc.nasa.gov/shared_assets/models/cloudsat/cloudsat-428-321.png)
Launched in April 2006, CloudSat monitors the state of the Earth’s atmosphere and weather with a sophisticated radar system. The instrument, jointly developed with the Canadian Space Agency, can predict which clouds produce rain, observe snowfall, and monitor the moisture content of clouds.