https://www.spacedaily.com/news/mars-life-04m.html
Moffett Field CA (SPX) Jul 15, 2004 - NASA scientists are modifying a sensor so it could look for signs of martian life by reading data from a soil-burrowing...
earth sensornasaadaptingreaddata
https://futurism.com/darpa-earth-atmosphere-giant-sensor
While trying to determine if it could use the entire Earth's atmosphere as a massive sensor, DARPA made a highly unusual detection.
darpatriedusingearthatmosphere