How do studies and discoveries about the universe affect our lives?
They increasingly have taken humans out of the centre of the universe and to some extent "put us in our place"
400 hundreds years ago, humans believed that the stars, sun and planets revolved around the Earth and we were the centre of of the universe. Early astronomers demonstrated that this was not true and that the Earth revolved around the sun. Scientific discoveries of the galaxy showed that our sun was only one of about 100 billion in our galaxy and we were not the centre of the universe, but located on one of the spiral arms of the Milky way galaxy. Discoveries of the big bang theory showed that our galaxy was only one of billions in the visible universe.
In biology, the idea of evolution also de-throned us a bit by showing that we were not the pinnacle of evolution, but simply one branch on a very complex web of life.