Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A cikin 1610, masanin ilimin Italiyanci Galileo Galilei ya gano manyan taurari huɗu na Jupiter (wanda yanzu aka sani da taurari na Galilean) ta amfani da madubin hangen nesa; an yi tunanin cewa shine farkon kallon telescopic na wasu taurari ban da na Duniya. Wata rana bayan Galileo, Simon Marius da kansa ya gano watannin da ke kewaye da Jupiter, kodayake bai buga abin da ya gano a cikin littafi ba har zuwa 1614. Sunaye ne na Marius ga manyan taurari guda huɗu, duk da haka, waɗanda suka tsaya - Io, Europa, Ganymede da Callisto. Wadannan binciken sun kasance farkon ganowar motsi na sama wanda ba a bayyane yake ba a duniya. Binciken ya kasance babban mahimmanci a cikin ka'idar Copernicus ta heliocentric na motsin taurari; Galileo ya nuna goyon baya ga ka'idar Copernican ya sanya shi a karkashin barazanar Inquisition. A lokacin 1660s, Giovanni Cassini ya yi amfani da sabon telescope don gano spots da launuka masu launi a kan Jupiter kuma ya lura cewa duniyar ta bayyana oblate; wato, a kwance a iyakar. Ya kuma iya sanin lokacin da duniya take juyawa. A cikin 1690 Cassini ya lura cewa yanayin yana fuskantar juyawa daban-daban.Babban Red Spot, sanannen fasali mai siffa mai siffa a kudancin Jupiter, mai yiwuwa ne Robert Hooke ya lura da shi tun farkon 1664 da kuma Cassini a cikin 1665, kodayake ana jayayya da wannan. Masanin magunguna Heinrich Schwabe ya samar da zane na farko da aka sani don nuna cikakkun bayanai game da Babban Red Spot a 1831. An bayar da rahoton cewa Red Spot ya ɓace daga gani a lokuta da yawa tsakanin 1665 da 1708 kafin ya zama sananne a 1878. An sake rubuta shi a matsayin faduwa a cikin 1883 da kuma a farkon karni na 20. Giovanni Borelli da Cassini sun yi teburin hankali na motsin watannin Jupiter, suna ba da damar hasashen lokutan da watannin za su wuce gaban ko bayan duniyar. A cikin shekarun 1670, an lura cewa lokacin da Jupiter ya kasance a gefen gefen Sun daga Duniya, waɗannan abubuwan zasu faru kimanin minti 17 daga baya fiye da yadda ake tsammani. Ole Rømer ya yanke shawarar cewa haske baya tafiya nan take (hukuncin da Cassini yayi...  Tambaya: Wanene aka ƙi gaskatawar Cassini a baya?
Ole Rømer