Tools Of The Astronomer
The Telescope of the Astronomer
By: Marjan Syed
Years and Years ago, astronomers didn't have the advantage of the telescope. They could only use their naked eye. It wasn't until Galileo first made a better telescope that it could be used for looking into space. Most every telescope you buy today is better than the one he used. These telescopes have revolutionized astronomy in general.
When Galileo first took his telescope and looked at the sky he saw amazing things. He saw craters on the Moon, dark spots on the surface of the Sun, tiny moons moving around Jupiter. No one else had ever seen these things. With the modern telescopes we use today, we can see many many more things.
Light from planets, stars and galaxies spreads itself on Earth, and a telescope collects this light and lets us look at the object the light came from. Some telescopes, called refracting telescopes, collect and focus light through a glass lens. Another type, the reflecting telescopes, reflect light......
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