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 were rescheduled to new dates and venues, often at short notice, and all five of the Classics were run at Newmarket. As a two-year-old in 1944, Sun Stream was among the best of her generation. She won the Bedford Stakes over five furlongs at Newmarket in spring and then moved up in class for the Queen Mary Stakes in June. The race, traditionally part of the Royal Ascot meeting, was run at Newmarket from 1941 to 1944. Ridden by Harry Wragg, she won the race at odds of 100/30. In autumn, Sun Stream ran in the six furlong Cheveley Park