assume(s) that the expansion rate of the universe always stays the same.target 1 of 5 Blank predict(s) that the universe is expanding today.target 2 of 5 Blank predict(s) that the universe will someday contract.target 3 of 5 Blank predict(s) that the average density of mass in universe is exactly the critical density.target 4 of 5 Blank predict(s) that the universe is expanding faster now than it was in the distant past