Wind as the Earth to evolve into planets like Venus. Additionally, planets with hotter lower atmospheres could accelerate the loss rate of hydrogen. Rather than air, the solar wind is a stream of charged particles—a plasma—ejected from the upper atmosphere of the sun at a rate of . It consists mostly of electrons and protons with energies of about 1 keV. The stream of particles varies in temperature and speed with the passage of time. These particles are able to escape the sun's gravity, in part because of the high temperature of the corona, but also because of high kinetic energy
Sun Stream not compete again. In their book, "A Century of Champions", based on the Timeform rating system, John Randall and Tony Morris rated Sun Stream a "superior" winner of the 1000 Guineas and Oaks and the twenty-fifth best filly trained in Britain or Ireland in the 20th century. Sun Stream retired from racing to become a broodmare at her owner's stud. She produced four minor winners, but nothing of top class. Through her daughter Riviera, she was the female ancestor of the Champion Hurdler Collier Bay. Sun Stream was euthanised in January 1959. Sun Stream Sun Stream (1942 – January 1959)