TED-Ed: Could we survive prolonged space travel? - Lisa Nip

The video explores the challenges of space travel, focusing on microgravity and radiation. It discusses human adaptation in harsh environments, like the Himalayas, and the potential of gene therapy and editing to accelerate adaptation. The use of melanin for radiation protection and the effects of microgravity on bones and muscles are examined. The video concludes with a look at future genetic tools for space living, considering ethical implications.

What is one of the main challenges humans face when considering long-duration space travel?

• Lack of oxygen in space

• Microgravity affecting muscle and bone growth

• Communication delays with Earth

• Limited food supply

How have Himalayan populations adapted to high altitudes over thousands of years?

• By increasing lung capacity

• By evolving mechanisms to maintain normal blood flow

• By producing more red blood cells

• By developing thicker skin

What potential solution is suggested for protecting human DNA from radiation in space?

• Building thicker spacecraft walls

• Increasing distance from radiation sources

• Using melanin-based energy-harvesting systems

• Wearing lead suits

What is a proposed method to counteract bone and muscle loss in microgravity?

• Increasing physical exercise

• Using biochemically engineered microbes

• Consuming more calcium

• Wearing weighted clothing

What are two flexible tools mentioned for adapting to space challenges?

• Robotics and AI

• Solar panels and batteries

• Gene editing and microbial engineering

• Virtual reality and simulations