User talk:50.54.139.146

October 2023
Hello, I'm CWenger. I noticed that you added or changed content in an article, Future of an expanding universe, 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. –CWenger ( ^ •  @ ) 03:04, 16 October 2023 (UTC)