Science: Biggest Star

The sun, 864,000 miles in diameter, could contain a million bodies the size of the earth. Yet the sun, though of higher than average luminosity, is rather on the small side as stars go, being officially classed as a "yellow dwarf." For a really big star astronomers look to Antares, a red supergiant 400,000,000 miles in diameter. All stars are globes of hot gas. Antares is relatively cool, its gaseous density very low. Thirty-seven thousand cubic feet of its star-stuff, if concentrated and brought to earth, would weigh only one pound. Yet...