Around 1608.
Telescopes are instruments used by astronomers. The first person to do this was Galileo.
Telescopes are used inside
Light is found by reflecting telescopes and refracting telescopes are used to dected sound
Collimation is used for telescopes to make sure the telescopes are perfectly aligned. The reflector will not produce the best image if the aligned is not just right.
The largest telescopes that use visible light are reflector telescopes.
Telescopes are used to see things that are far away from earth. Using telescopes we can see things that are millions of miles away. Most of the telescopes are on Earth but some of them are in space such as the Hubble Space Telescope.
hubble
The largest telescopes that use visible light are reflector telescopes.
The first telescopes actually came from China. Galileo of Italy perfected a telescope in the 1600's.
Refracting telescopes and reflecting telescopes are commonly used to observe stars in visible light. These telescopes utilize lenses or mirrors to gather and focus light, allowing astronomers to view stars with clarity and detail.
Ground telescopes and orbital satellite telescopes.
Telescopes were first used for astronomical observations in the early 17th century, primarily to study celestial objects such as the Moon, planets, and stars. The first recorded use of a telescope for astronomy was by Galileo Galilei in 1609, who made significant discoveries including the moons of Jupiter and the phases of Venus. These advancements challenged existing views of the cosmos and laid the groundwork for modern astronomy. Ultimately, telescopes expanded our understanding of the universe and our place within it.