Science and U: Dwarf Galaxies and Dark Matter - A Neighbor's Choice

Has the door to fusion energy finally been unlocked? Do the collision of dwarf galaxies explain dark matter? Is there a new explanation for the strange fluctuations in Earth's magnetic field? Join physicist Dr. Weiping Yu, the chief science advisor of the show, as he answers the questions brought up by the latest science stories and more. Visit A Neighbor's Choice website at aneighborschoice.com