Put three grains of sand inside a vast cathedral, and the cathedral will be more closely packed with sand than space is with stars.
--James Jeans (1877-1946)
(41:3.2) The suns of Nebadon are not unlike those of other universes. The material composition of all suns, dark islands, planets, and satellites, even meteors, is quite identical. These suns have an average diameter of about one million miles, that of your own solar orb being slightly less. The largest star in the universe, the stellar cloud Antares, is four hundred and fifty times the diameter of your sun and is sixty million times its volume. But there is abundant space to accommodate all of these enormous suns. They have just as much comparative elbow room in space as one dozen oranges would have if they were circulating about throughout the interior of Urantia, and were the planet a hollow globe.
Sir James Hopwood Jeans OM FRS (11 September 1877 – 16 September 1946) was an English physicist, astronomer and mathematician.
(He is also a human source for some of the cosmology in the Urantia papers.)