Planet Birthing惑星の誕生 by Wal Thornhill | May 25, 2003 4:41 pm Dan Falk prefaced a recent news report in Nature, on the subject of planet formation, with these words:ダン・フォークは、惑星形成をテーマとしたネイチャー誌の最近のニュースレポートの冒頭に次の言葉を付け加えた: “Our knowledge of planets outside our Solar System has been transformed in the pas…