I came across an article on SciFi where an astronomer was commenting on the science aspects of the film. Apparently, they mention in the film that LV-223 is 300 trillion kilometers away from Earth which works out to about 30 light-years. I must have missed this. They do mention that the flight-time was only 2 years. I thought this was subjective time due to relativity but the scientist though this implied an FTL drive so maybe I'm wrong!
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