Extreme survival: do we have what it takes?

Prolonged space travel plays a severe toll on the human body. Microgravity impairs muscle and bone growth, and high doses of radiation cause irreversible mutations. As we seriously consider the human species becoming space-faring, Lisa Nip asks: can we adapt to the extreme environments of space?

https://www.youtube.com/watch?v=upp9-w6GPhU