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.

What was the primary purpose of Scott Kelly's year-long mission in space?

• To explore new planets

• To study the effects of long-term space travel on the human body

• To conduct experiments on plant growth in space

• To test new space equipment

What is a significant risk astronauts face due to cosmic rays in space?

• Dehydration

• Loss of communication with Earth

• Increased risk of radiation exposure

• Loss of muscle mass

How does microgravity affect the distribution of fluids in an astronaut's body?

• Fluids pool in the lower body

• Fluids become evenly distributed

• Fluids evaporate quickly

• Fluids concentrate in the extremities

What is one of the solutions NASA is testing to counteract bone density loss in space?

• Magnetic therapy

• Increased sleep

• Weightlifting machines

• Special diets

What psychological effect might astronauts experience when viewing Earth from space?

• Space Sickness

• Vertigo

• Isolation Syndrome

• The Overview Effect

Why are humans still essential for space missions despite the presence of robots?

• Humans are cheaper to send to space

• Robots cannot survive in space

• Humans are better at problem-solving and decision-making

• Robots are not allowed on space missions

What might astronauts lose during long-term space missions, affecting their eating experience?

• Sense of smell

• Sense of touch

• Sense of hearing

• Sense of taste