Ganpathy Murthy, Professor of Physics and Astronomy, speaks about Big Bang Theory, Dark Matter and Dark Energy. Part 2 - What’s the Evidence for the Big Bang and Expansion of the Universe? What Do We Measure and How? What’s the evidence? How we know the Big Bang happened, and that the universe is expanding and accelerating. How we measure how fast different parts of the Universe are moving away.

Ganpathy Murthy, Professor of Physics and Astronomy, speaks about Big Bang Theory, Dark Matter and Dark Energy. Part 3 - More Evidence, Including the Evidence for Dark Matter, and Dark Energy More on the Big Bang, how we measure how far away different parts of the universe are Dark Matter, Dark Energy

Ganpathy Murthy, Professor of Physics and Astronomy, speaks about Big Bang Theory, Dark Matter and Dark Energy. Part 1: The Big Picture; the History of the Universe from the Big Bang to Now Introduction to What’s New in Science The big picture; the history of the universe from the Big Bang to now. Important scientific milestones leading to our present knowledge