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RE: If The Universe Is Expanding, Then What Is It Expanding Into
@sigmund, articles of this nature requires that the images and the work should be correctly referenced. If you would like to contribute to steemstem, you can study this guidelines on how to be a steemstem member. On proper use of images devoid of copyright issues check here. You may want to join the #steemSTEM on discord here where we hang out and discuss a wide range of things.