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A warm welcome to the new NetWeather Astronomy & Cosmology thread. This thread has been designed to encompass all aspects of astronomy for all levels of expertise, from a casual interest to the 'would-be Stephen Hawkins'! So please feel free to browse and ask any questions you might have, and I'm sure there will be plenty of members ready to discuss the answers. There are a whole raft of resources available on the internet so I'll post a few links below, and feel free to add your own links in what is a diverse and fascinating field of study. http://www.eso.org/public/ http://www.nasa.gov/ http://www.space.com/ http://www.sciencedaily.com/news/space_time/ http://en.wikipedia.org/wiki/Astronomy I'll kick off the discussion with a question that was posed by Snowlady36 'How fast is the universe currently expanding?' An interesting question!. The best I can come up with is from well known TV astronomer Phil Plait, host of Discovery Channel's 'Bad Astronomy'.....According to his interpretation, the universe expands at a rate of 74 Kilometers per second per every 3 million light years of distance.....here's the link http://blogs.discovermagazine.com/badastronomy/2009/05/07/the-universe-is-expanding-at-742-kmsecmpc/#.U06z71e59tA Can anyone else come up with a different answer?