Posted on YouTube, October 11, 2019
The black hole at the center of the Milky Way is quiet now, but new evidence suggests that it woke up around 3.5 million years ago. And Enceladus may have the the building blocks of the building blocks of life.
Host: Caitlin Hofmeister
SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at http://www.scishowtangents.org