Istudentphysics

Istudentphysics, you are invited to the Teahouse!

Hi Istudentphysics! Thanks for contributing to Wikipedia. Be our guest at the Teahouse! The Teahouse is a friendly space where new editors can ask questions about contributing to Wikipedia and get help from experienced editors like Mz7 (talk). Visit the Teahouse We hope to see you there! Delivered by HostBot on behalf of the Teahouse hosts 16:07, 10 November 2019 (UTC)

Please discuss

After you added material to Dark matter, it was reverted, with an edit summary indicating that the material appears to duplicate material already included in the article (at Dark matter#Galaxy rotation curves). Once the revert occurred, you should not just reinsert the material; instead, you should discuss the matter at Talk:Dark matter. (See WP:BRD.) WikiDan61^ChatMe!_ReadMe!! 15:48, 12 November 2019 (UTC)