User talk:2601:4C4:4000:CFE0:5937:3C1B:DA53:82E4

Recent edit to Space Shuttle Challenger disaster
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, Space Shuttle Challenger disaster, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you! Kevin12xd 16:51, 30 March 2019 (UTC)