It takes billions of dollars to send just a few humans to any planet or moon. They could all die along the way and everything that was put into such a project would be lost. I know, that's just the chance we should take to explore things. But I suggest otherwise. If we can use the money to build robotic types of explorers that wouldn't cost as much and never put a humans life in danger wouldn't that be more prudent? Imagine 100 explorations to many places to get information instead of one trip with humans to one location. In the meantime scientists, engineers and others can be experimenting with ways to get to places much faster than we can travel today. So that within a 30 year or so period they COULD develop much faster travel as well as safer and economical ways to do so . So what do you think? Would more exploration by robotic spacecraft be wiser now than trying to put our money all into one project of humans on the Moon or on Mars?