User talk:67.172.225.29

July 2021
Hello, I'm Balon Greyjoy. I noticed that you added or changed content in an article, Space Shuttle Challenger disaster, 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. Thank you. Balon Greyjoy (talk) 07:19, 16 July 2021 (UTC)