365bet中国官方网站

  • word of the day

    heliopause

    heliopause - 365bet中国官方网站 definition and meaning for word heliopause

    Definition
    (noun) the boundary marking the edge of the sun's influence; the boundary (roughly 100 AU from the sun) between the interplanetary medium and the interstellar medium; where the solar wind from the sun and the radiation from other stars meet
  • Download our Mobile App Today