Video Astronomy - How Big is a Light Year?

Based on a small computer program that I wrote, this video attempts to convey the true meaning of a light year by considering how long it would take to travel that far using various modes of transport that range from what is presently technologically available, through what is theoretically possible, up to what is offered only by science fiction. It then examines how long it would take to travel to a selected range of astronomical objects using those modes of transport. (24 minutes)

It is recommended that you view it using the full-screen option.