 FACT: In addition to the curvature problem, there are many other  factual errors in episode #6.4, "Relics". The Dyson spheres  diameter is given as 200 million kilometers, which is said to be  roughly the same as Earths orbit. The diameter of Earths orbit is  closer to 300 million kilometers. The lower figure converts to  roughly 124 million mi, which is less than the diameter of the orbit  of Venus. The star inside the sphere is said to be type G, similar  to our sun. At the given size of the sphere, trapping the total  energy output of a star of that type would render the interior  uninhabitable without some way to re