What If We Nuked Mars?

Elon Musk wants to nuke Mars. What are the consequences? Without nukes, life on Mars might be like this: You'd live in giant glass domes, and grow small portions of food inside. And if you happen to go outside, it would be in your big clunky spacesuit, and you wouldn't be able to stay out for long. But it doesn't have to be like this. But Mars could end up looking and feeling a lot more like your planet, Earth. But how? Well...