The author of this thesis found that the novel cares about such problems as human beings’ exploration of the universe, the relationship between human beings and aliens, and the ultimate goal of the civilization of human beings.First, the author attempted to clarify the binary opposition relationship between human beings and aliens in this novel based on the binary opposition between the Occident (the Self) and the Orient (the Other) put forward by Edward Said. As aliens had visited the earth in the primeval age, and human beings have never stopped exploring the universe, the author of this paper then sets out to investigate the true identities of human beings and aliens. It was found that aliens are the true Self to some extent while human beings are the Other, which subverts the binary opposition in postcolonial theory and proves that under certain circumstances the Self can exchange identity with the Other.

The research on the concrete embodiment of the colonizer as the Self and the colonized as the Other and the interchange process of the identity of the Self and the other from the perspective of postcolonialism will help human beings to better understand their position in the universe, to maintain a friendly attitude towards aliens, and to harmoniously live with the civilization of the Outer Space.