Conflict

In my book the "Endless Voyage" there are many conflicts. For example:

Man v. Nature. Where the captian of the ship was searching around this new planet that they landed on and then he suddenly mysteriously died, for no reason. They think that he might have been attacked by an insect.
Man v. Self: The main character of the book is struggling with who he loves. Everyone thinks that he should fall in love with one of his long time old friend. But he doesn't love her that much to commit to her. He then starts to find other girls but he still keeps going back to her. He is very confused about who is in love with.
Man v. Society: When one of the crew members land on other planets sometimes they are not accepted by their people. Because they are known for stealing babies sometimes. So in some societies they are not accepted and sometimes they do not come back to the ship alive.