The sun, by knowledge built up from the days of Jeans and Eddington, contains more than ninety percent of hydrogen, and the small remainder is helium, oxygen, nitrogen, carbon, and iron. It maintains its surface temperature by nuclear reactions from within outward, at a rate suitable to make helium out of hydrogen, so as to compensate for the energy which the sun radiates. This dominance of hydrogen inside the solar star makes it impossible that the earth should be solar. Rather, it was a product of a companion star, a supernova which exploded and, with excessive heat, created elements atomically. The sun was a binary pair of stars, and the companion occupied the place of the four greater planets. The remnant body, after explosion, moved away. A gaseous ring formed around the sun condensing from many molecules to rotating superplanets. These broke up many hundred million years ago into Jupiter, Saturn, Uranus, and Neptune. Small blobs escaped to become the inner planets including the earth. The earth captured small solids and acquired the moon as a satellite. It got radioactive matter exteriorly, plus nitrogen, water, oxygen, and carbon dioxide. There is a hundred times more hydrogen per unit of mass in the sun than in the planets. Its supply will last for 50,000 million years. The solar system is tunneling through variable interstellar gas. It picks up more or less material, and so changes climates occasionally. This makes such episodes as the ice ages on earth. Lyttleton estimates that the dust clouds encountered form bundles of particles captured by the sun to make comets. The mathematics of the interior of the sun, applied by Bethe to the use of carbon and nitrogen as catalysts and changing hydrogen to helium, is a model of experimentation. It should be imitated to explain Hawaiian basalt. The core of the earth produces gas reactions up cracks. The gases act on deep crust. The surface product is olivine basalt. What are the reactions between gas and crust to make Mauna Loa foam fountains? This problem has not been tackled. Geologists have clung to a theory of shallow reservoirs. The astronomers of Cambridge, successors of the American experimenter George Ellery Hale and of Eddington and Jeans, are not the final word in cosmology. There will be a final word. The picture created from background material to gas, from gas to galaxies, and from galaxies to solar systems ends for us in our planet with a white hot liquid core. Nuclear reactions created this from the superheat of an exploding supernova. Our erupting volcanoes are the end product. We can sit beside erupting lava fountains and watch hydrogen flames, the same gas that was made of the background material in the universe.