So You Want to go to Mars?

The video discusses the challenges of long-term space travel, including physical and psychological effects on astronauts. It highlights Scott Kelly's year-long mission, the impact of radiation, and the effects of microgravity on the human body. The video emphasizes the importance of human ingenuity in space exploration and introduces a PBS documentary on Scott Kelly's mission.

Explain the significance of Scott Kelly's year-long mission in space.

What measures is NASA taking to protect astronauts from radiation in space?

What are the potential effects of long-term space travel on an astronaut's microbiome?