User talk:2A00:23C6:828D:2E00:455C:4C22:2D02:64E2

June 2020
Hello, I'm ComplexRational. I noticed that you added or changed content in an article, Dark matter, 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 the tutorial on citing sources. If you think I made a mistake, you can leave me a message on my talk page. Thank you. ComplexRational (talk) 17:42, 25 June 2020 (UTC)
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