User talk:174.247.240.77

January 2022
Hello, I'm Dennis Brown. I wanted to let you know that one or more of your recent contributions&#32;to Talk:Space Shuttle Columbia disaster have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Teahouse. Thanks. Dennis Brown - 2&cent; 01:05, 28 January 2022 (UTC)