We thought NASA was just monitoring space junk for the US government, but it turns out it has been selling an orbital warning service to select customers
Source:
https://www.newscientist.com/article/2226320-nasa-is-quietly-helping-satellite-firms-avoid-catastrophic-collisions/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home