<P> The earliest known telescope appeared in 1608 in the Netherlands when an eyeglass maker named Hans Lippershey tried to obtain a patent on one . Although Lippershey did not receive his patent , news of the new invention soon spread across Europe . The design of these early refracting telescopes consisted of a convex objective lens and a concave eyepiece . Galileo improved on this design the following year and applied it to astronomy . In 1611 , Johannes Kepler described how a far more useful telescope could be made with a convex objective lens and a convex eyepiece lens and by 1655 astronomers such as Christiaan Huygens were building powerful but unwieldy Keplerian telescopes with compound eyepieces . </P>
<P> The earliest known telescope appeared in 1608 in the Netherlands when an eyeglass maker named Hans Lippershey tried to obtain a patent on one . Although Lippershey did not receive his patent , news of the new invention soon spread across Europe . The design of these early refracting telescopes consisted of a convex objective lens and a concave eyepiece . Galileo improved on this design the following year and applied it to astronomy . In 1611 , Johannes Kepler described how a far more useful telescope could be made with a convex objective lens and a convex eyepiece lens and by 1655 astronomers such as Christiaan Huygens were building powerful but unwieldy Keplerian telescopes with compound eyepieces . </P>
who made the first telescope and used it to observe the sky
who made the first telescope and used it to observe the sky
Hans Lippershey
Hans Lippershey