Not to sure that this deserves its current low rating and poor reviews. Yes it has flaws, scientific, pace etc, but it is also a meditative account of loneliness, and humanity's own flaws. It is also well shot with an emotive score that is well matched to the movie. It makes you think and consider many things, which is why I expect many of the reviews are negative. Not the best when compared to a Interstellar for example, but deserves some attention.