X1014065895-00201-41953</DOCNO> INTRODUCTION INTRODUCTION Gazing through the first crude telescope in the 17th century, Galileo discovered the craters of the Moon, the satellites of Jupiter, and the rings of Saturn.
(Galileo; discovered; the craters of the Moon, the satellites of Jupiter, and the rings of Saturn)
Galileo
discovered
the craters of the Moon, the satellites of Jupiter, and the rings of Saturn