e = (ap/a) - 1 E. Galileo Galilei Used the first telescopes for astronomy Discovered: mountains on Moon, sunspots, phases of Venus, 4 moons of Jupiter.
(1 E. Galileo Galilei; Used; the first telescopes for astronomy Discovered) (the first telescopes for astronomy; Discovered; )
1 E. Galileo Galilei the first telescopes for astronomy
Used Discovered
the first telescopes for astronomy Discovered