<human>: How did the discovery of DNA change the way scientists view the universe?
<bot>: The discovery of DNA changed the way scientists view the universe because it allowed them to understand how life works at a molecular level. Before this, scientists believed that life was too complex and mysterious to be understood through scientific inquiry. However, after discovering the double helix structure of DNA, they realized that life is governed by simple chemical reactions that are repeated over and over again. This led to the development of modern genetics and the understanding that all living things share a common ancestor.