Proton the particles in the solar wind are electrons and protons, in approximately equal numbers. Protons also have extrasolar origin from galactic cosmic rays, where they make up about 90% of the total particle flux. These protons often have higher energy than solar wind protons, and their intensity is far more uniform and less variable than protons coming from the Sun, the production of which is heavily affected by solar proton events such as coronal mass ejections. Research has been performed on the dose-rate effects of protons, as typically found in space travel, on human health. To be more specific, there
Sun Stream stud, where her record as a broodmare was disappointing. Sun Stream was a chestnut mare with a white blaze and white hind feet. She was bred, like both her parents by her owner Edward Stanley, 17th Earl of Derby, the seven-time British flat racing Champion Owner. She was sired by Hyperion, who won The Derby and the St Leger Stakes for Lord Derby in 1933 and went on to become an internationally significant sire: Sun Stream's successes enabled Hyperion to claim the fourth of his six sires' championships in 1945. Sun Stream's dam, Drift, won four races including the Atalanta