User talk:

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Information icon Hello, I'm Materialscientist. An edit that you recently made seemed to be a test and has been removed. If you want more practice editing, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks! Materialscientist (talk) 10:11, 19 April 2014 (UTC)

Please stop adding advertising or inappropriate external links to Wikipedia, as you did in Talk:NASA. It is considered spamming, and Wikipedia is not a vehicle for advertising. Thanks. NawlinWiki (talk) 11:27, 19 April 2014 (UTC)