U.S. eyes building nuclear power plants on the moon, Mars
I really don't get the rush to try to travel to/colonize Mars. Mars is a really awful place for humans to live or visit, and it would be incredibly expensive to try.<p>Why not wait 50-100 years when we have safe, compact fusion reactors, have fast enough engines to reach Mars in under a month, and have an economic imperative to harvest the asteroid belt? We gain nothing meaningful now--we're just fulfilling the fantasy of some middle aged men.