when the first European explorers were around. Remember Rome was not built in a day! Just like Rome, the astronauts and explorers took time to discover what they found. As anyone can see, there are many differences between the astronauts of today and explorers of yesterday. The times is need and challenges along the way were both different in each situation. Somehow, both pulled through. Thanks to them, we have so much. Both contributed to our world greatly. ...