Caleb Scharf

Astrobiologist Caleb Scharf, a senior scientist at NASA Ames and author of The Giant Leap, explores humanity's future in space. He argues our expansion beyond Earth might be an evolutionary necessity. Scharf discusses the challenges of radiation and microgravity on human biology and why terraforming Mars is unrealistic. Instead, he suggests building rotating habitats in space for sustainability. The conversation also touches on the evolution of space technology and the role of private companies reshaping exploration. This engaging dialogue dives deep into our cosmic destiny.