The first extra galactic planet in 1992 history was made when astronomers finally confirmed the existence of the first exoplanets that is, planets in a star system other than our own science has come a long way, and in 2020 it was announced that the first extra galactic planet had been discovered.
1992年曆史上第一顆星系外行星,天文學家終於證實了第一顆系外行星的存在,也就是除我們自己的科學以外的恆星系統中的行星,取得了長足的進步,在2020年宣佈發現了第一顆星系外行星。