To turn Mars into a second Earth, you'd need to pump so much gas that Earth's industry couldn't handle it in a thousand years. Warming mirrors would cover an area the size of Africa. But researchers have found a realistic alternative: giant dome-tents over cozy valleys. This 'handyman's fix' could start right now.
🎯 Without a magnetic field, any new Martian atmosphere would be stripped away by the solar wind in just a few million years — a blink of an eye on geological time scales.
🎬 Fans of Kim Stanley Robinson's Mars trilogy will recognize this theme — from the first domes to the grand attempts at full terraforming.