Telescope

A telescope is a wonderful instrument that allows us to see stars, planets, and other distant objects in the sky up close. We cannot clearly see things that are very far away with our eyes alone, right? The telescope collects light from these objects, magnifies them, and shows them to us. Thanks to the telescope, we can discover not only stars but also craters on the Moon, Jupiter’s moons, and many other features!

Telescope (Generated by Artificial Intelligence)

The Invention of the Telescope

The telescope was first made in 1608 by a Dutch eyeglass maker named Hans Lippershey. He placed two different lenses—a slightly thick and a slightly thin piece of glass—inside a tube. This telescope could magnify objects only three times, but even this was a major discovery at the time!

The Evolution of the Telescope

After Lippershey’s telescope, other scientists improved upon the design. For example, the Italian scientist Galileo Galilei built a more powerful telescope in 1609. This telescope could magnify objects up to 30 times! Galileo was the first person to point a telescope at the sky. He discovered craters on the Moon, the moons of Jupiter, and the rings of Saturn. These discoveries marked a major step forward in our understanding of the universe.

Later, the scientist Johannes Kepler designed a telescope using two convex lenses to produce sharper images. However, these telescopes still produced colored, blurry bands. This problem was solved by Isaac Newton, who replaced lenses with mirrors to create the “reflecting telescope.” Today, most telescopes operate on this principle.

Over time, telescopes grew larger and more powerful. In 1789, William Herschel built the largest telescope of his era and discovered the planet Uranus.

Telescope (Generated by Artificial Intelligence)

Space Telescopes

Did you know that some telescopes are not on Earth but in space? The Hubble Space Telescope was launched into space in 1990. It is about the size of a bus and orbits around Earth. It has shown us the farthest corners of the universe and how stars and galaxies form. The Kepler Space Telescope discovered planets orbiting other stars. Another remarkable telescope is the James Webb Space Telescope, launched in 2021, which observes the most distant regions of the universe.

Specialized Telescopes

Some telescopes collect light that we cannot see with our eyes. For example, the Event Horizon Telescope works by combining data from telescopes located in different parts of the world. In 2019, with the contribution of Turkish scientist Professor Dr. Feryal Özel, it captured the first-ever image of a black hole!

Telescopes in Türkiye

Türkiye also has its own telescopes! The TÜBİTAK National Observatory in Antalya is a place where scientists study stars and planets. Additionally, there is the Eastern Anatolia Observatory (DAG) in Erzurum. This is Türkiye’s largest telescope and observes the sky using infrared light.