The local group is only one of many, many clusters of galaxies. all of the galaxies are all moving away from each other causing more and more space to come between them. this means the universe is expanding. that discovery is what led to

this theory/hypothesis is a result of another idea, i.e. idea according to which after the Big Bang (hypothesis, again) and since then cosmos/Universe is expanding so all the object found in the universe are moving from each other. There is another idea that after expanding will follow shrinking. We found ourselves in pure theorizing, of course.

Explanation:

community or area create social relationships that typically differ greatly from the affiliations ultimate effects of travel experiences on the population in areas of origin, as well as in places of wage of only a dollar or two. motorcoach operators, museums, and restaurants fall into the broad category of public

explanation: