The Universe is Expanding!!!

You will see that the expansion of the universe is the expansion of space itself---the galaxies are not moving through space, but, rather, they are being carried along with the expansion of space. 

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The Universe is continuously expanding as a result of the Big Bang, the force of the explosion of the Big Bang however is neutralized by clusters. While in general all galaxies and cluster are moving away from each other, the galaxies inside clusters are moving towards each other, which is caused by their mutual gravitation. The larger the cluster, the stronger they pull the brakes on the expanding motions of the galaxies. This is one of the main reasons why astronomers do a lot of research on clusters, perhaps they are the key to the solution of the question of the Big Crunch.


Below is a demonstration of a galaxy clusters and how they expand and move due to the universe expanding.

My ring finger is the Milky Way Galaxy and the rest of my fingers are other galaxies. This example shows the slow expansion of the galaxies due to the universe moving and growing. Galaxies slowly expanding over time too because the universe stretches them out!