Gravitational lensing is useful to cosmologists because it is directly sensitive to the amount and distribution of dark matter. This is because the amount of light bending is sensitive only to the strength of the gravitational field it passes through*, which is mostly generated by the mass of the dark matter in the Universe.
Union City is a city in Wayne Township, Randolph County, Indiana, United States. As of the 2010 census, the city had a population of 3,584. Union City was a stop along the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad, a forerunner of the Pennsylvania Railroad that connected Pittsburgh to Chicago and St. Louis.
The population was 4,877 at the 2010 census. The Town of Union Vale is in the south-central part of the county. It is part of the PoughkeepsieâNewburghâMiddletown, NY Metropolitan Statistical Area as well as the larger New YorkâNewarkâBridgeport, NY-NJ-CT-PA Combined Statistical Area. The town is 10 miles (16 km) east of the City of Poughkeepsie and 60 miles (97 km) from New York City.