There’s a new episode of PBS Eons.  This one is about plate tectonics and how they got started.  Ever hear of super continent Nuna?  The video of plate movement is very cool!

There was a time in Earth’s history that was so stable, geologists once called it the Boring Billion. But the fact is, this period was anything but boring. In fact, it set the stage for our modern version of plate tectonics – and probably for the rise of life as we know it.