Science and U: Challenging the Foundation of Physics - A Neighbor's Choice

The Andromeda galaxy is getting closer to us more and more every day. What could this mean? Physicist Dr. Weiping Yu returns with a brand new segment of Science and U. Dr. Yu offers his unique insights on the latest science news. What really holds the universe together? What is matter made up of? Is the universe finite or infinite? Visit A Neighbor's Choice at aneighborschoice.com