Dr. David Weintraub discuss about history of our fascination with the Red Planet, as well as describes the the various moral issues that surround our desire to go there.

Dr. David Weintraub discuss about history of our fascination with the Red Planet, as well as describes the the various moral issues that surround our desire to go there.
Just like all good stories, the life of a star has a beginning, a middle and an end. But not with this star!
What’s the balancing act happening inside stars? Why is iron the fusion limit? How long does it take for a star to blow?