Hal maalin ka dib Galileo, Simon Marius si madax-bannaan u ogaaday dayaxa agagaarka Jupiter, inkastoo uu ma uu daabacan uu daahfurtay buug ilaa 1614. Waxay ahayd magacyada Marius ee afarta dayax ugu weyn, si kastaba ha ahaatee, in ku xayiran <unk>Io, Europa, Ganymede iyo Callisto. natiijadan ayaa sidoo kale ahaa ugu horeysay ee la ogaado ee dhaqdhaqaaqa cir aan muuqata xarunta on Earth. daahfurka ahaa dhibic weyn ee taageerada heliocentric aragtida Copernicus ee dhaqdhaqaaqa of meeraha; Galileo ayaa taageero cad ee aragtida Copernican isaga hoos halista ah ee Inquisition.
Ole Rømer