The End of the Habitable Zone

The video explores the future of Earth as the sun brightens over billions of years. It discusses the sun's fusion process, the impact of increased solar energy on Earth's climate, and the eventual extinction of life due to rising temperatures and CO2 depletion. The video also addresses the faint young Sun paradox and potential geoengineering solutions to mitigate these effects.

How might life on Earth adapt as the planet becomes increasingly inhospitable?

What will be the fate of Mars as the sun continues to brighten?

What potential solutions are suggested for mitigating the effects of the sun's brightening on Earth?