User talk:117.212.240.19

July 2021
Hello, I'm Ken Tony. I noticed that you added or changed content in an article, List of NASA missions, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page.    Ken Tony  Shall we discuss? 12:09, 11 July 2021 (UTC)