In the weird world of physics, sometimes an experiment doesn’t go the way you expect it to. Which is exactly what happened when astrophysicist Adam Riess and his colleagues discovered that the universe was expanding at a faster and faster rate -- not slowing down as they had thought.
Listen now on our website: http://tiny.cc/u88ebw or take hour two with you on iTunes: http://tiny.cc/v3s8i.
