Tele(scope) it Out!

I recently read an article that was titled, “Hubble Space Telescope: Pictures,Facts, and History“. This specific article ties into our ninth objective, “I can describe: 1.) the functions of a telescope, 2.) types of telescopes and 3.) why some telescopes are placed on the ground and some in space”.  For the introduction, the author Nola Taylor Redd, begins by explaining the overall history of the Hubble Space Telescope. Since its’ initial launch in 1990, there have many different advancements and discoveries from the Hubble Space Telescope. Since the technology has improved, the telescope allows astronomers to get a first hands view of planets, stars, and even distant galaxies. We discussed in class how Earth’s atmosphere effects immensely on our optic view of other astronomical objects, even using the Hubble Space Telescope. We also learned how the atmosphere absorbs radiation, except at visible light, infrared, and radio frequencies, which is why the most important reason behind having telescopes in space is so astronomers can observe light that does not penetrate Earth’s atmosphere. Although we have telescopes in space that can relay us a more vivid picture, the article explains that the telescopes on ground are much less expensive. But with the new technology the space team is able to obtain, the images from ground are able to overcome any atmospheric distortions. However, the article states that when the telescope was launched and ready to use, there was a flaw. The mirror had issues and all of the pictures came out extremely fuzzy and useless.  This ties back into our objective when discussing how telescopes function. There are two types of telescopes; refracting and reflecting. A refracting telescope is a type of optical telescope that uses a lens as its objective to form an image. An optical telescope which uses a single or combination of curved mirrors that reflect light and form an image is a reflecting telescope. Although both of these telescopes have these differences, they both are an amazing way to capture the optic view of astronomical objects,


I really enjoyed this article because it was able to connect all points of the objective, in a very informational article. I was also able to learn about the Hubble Space Telescope, all while connecting it to our objective we discussed in class. In addition, I remembered some of the aspects of the refracting and reflecting telescope from previous science classes. Therefore, I was able to absorb new information learning from our current objective, all while knowing the information I knew before. All in all, I believe I am confident in this objective.


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