NASA lost the IMAGE satellite years ago. A little over a week ago, a hobbyist located the satellite.
Here’s the original announcement of the find: https://skyriddles.wordpress.com/2018/01/21/nasas-long-dead-image-satellite-is-alive/#more-32
Good overview of the whole thing: https://www.smithsonianmag.com/smart-news/long-lost-nasa-satellite-found-amateur-astronomer-180967974/
And this is what NASA is doing about it: https://www.nasa.gov/feature/goddard/2018/attempting-to-contact-nasa-s-image