Saul Permutter won the Nobel Prize for his eventual role in the discovery of dark energy. In 1996 when I was lecturing at LBL he bet me that he would show dark energy didn't exist. His group had been measuring supernova distances for years, in hopes of determining the deceleration rate of the universe. Instead, after r

Growing up, Saul Perlmutter just wanted to know how the world worked. In 2011, he was part of the Nobel Prize-winning team that discovered the accelerating expansion of the universe. Saul and Adam talk about how science and knowledge evolve, what surprising emotions come with discovery, and why the combination of indiv

Growing up, Saul Perlmutter just wanted to know how the world worked. In 2011, he was part of the Nobel Prize-winning team that discovered the accelerating expansion of the universe. Saul and Adam talk about how science and knowledge evolve, what surprising emotions come with discovery, and why the combination of indiv

After making the astonishing discovery that what he and his fellow cosmologists thought they knew about the universe was wrong, Saul Perlmutter began a course at his university explaining why catching mistakes is at the heart of science. It’s also a lesson in life for the rest of us.

It has been 20 years since we learned the expansion of the universe is accelerating due to the mysterious force called dark energy. Saul Perlmutter shared the Nobel Prize in Physics because of his contributions. Now he shares his thoughts with us.  Also at this year’s COSPAR Assembly in Pasadena was the Director Genera