Can We Ever Terraform Mars? The Truth Is Worse Than You Think

00:00 - The Reality of Stepping Onto Mars 00:46 - The Armstrong Limit & Low Atmospheric Pressure 01:45 - The Available CO2 Budget on Mars 03:17 - Why Mars Lacks Enough Greenhouse Gas 04:03 - Heating the Planet: Ideas & Major Obstacles 06:27 - Chris McKay's Timeline for Breathable Air 07:00 - The Solar Wind & Missing Magnetic Shield 08:07 - Feasibility of an Artificial Magnetic Shield 10:11 - The Loss and Scarcity of Water 13:03 - Weak Gravity & Low Escape Velocity 13:50 - The Problem of Importing Gases 15:16 - The Oxygen Dilemma & MOXIE 18:15 - Deadly Cosmic & Solar Radiation 20:17 - Toxic Soil: The Perchlorate Hazard 22:20 - The Millennia-Scale Terraforming Challenge 24:04 - Conclusion: The Three Unsolved Pillars