This is a good post if it is the original work of the post author, although I am not convinced this is the case. Still, let's pretend it is the original work of the post author - for a factual article like this, sources should be cited at the bottom for where all these facts came from. The author didn't just make all this stuff up - it came from a book, article, website, etc., and these sources should be listed. Also the author did not cite a source for the image. As far as Curie submission goes, one of the guidelines is that factual articles needs to be properly cited. This would not be submittable.