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jzermeno

If the Milky Way was the size of a coffee cup, how big would the rest of the universe be?

jzermeno

jzermeno said...

The Milky Way has a radius of about 50,000 light years. The visible universe has a radius of about 15 billion light years or 300,000 times the size of the Milky Way. So for an 8-centimeter-wide coffee cup as the Milky Way, the VISIBLE universe would be a sphere about 48 kilometers (almost 30 miles) in radius...give or take. I love this question and this is a great web page link below. Spend some time with it!

http://www.astronomycafe.net/qadir/agalaxy.html

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