Today, I kept watching the documentaries about the space traveling in order to find out what the dangers and difficulties of space traveling are. I found out lots of things in the youtube videos. As I began learning more and more things, I began to realize that what I knew was not all. Before I started this project, I felt like it was going to be too easy to finish since I know lots of difficulties in space like food problem and space.However, as I watched the videos, I found out that radiations, small pebbles in the space could also threaten the astronauts in the space. I am sure this project is going to be an interesting one ^^