QQC 2 6/17/11

Quote: "Nobody knows how many stars there are in the Milky Way-estimates range from 100 billion or so to perhaps 400 billion - and the Milky Way is just one of 140 billion or so other galaxies, many of them even larger than ours."

Question: Will we ever be able to travel through all these stars or maybe even the other galaxies? How can people estimate how many stars and galaxies there are if they can't even see them?

Comment: Wow. Its amazing how much of the universe we have never seen and how small a part of it we are. I can't even imagine how big it all really is and how long it would take to see everything. Also before this quote, the passage was talking about how there is a good chance there is life on other galaxies and stars, and just thinking about how large the universe is makes it seem silly to think that there couldn't be. I'm not really a huge believer in life on other planets, but I feel like if the universe is this big, (and we can't even see most of from where we are) it just seems like such a waste to have the rest of the universe and not have anything on it.