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Hubble Space Telescopes

explanatory Essay
924 words
924 words
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Doran 1

John Doran
Mr. Jurgens
English
April 4th, 2014
The Hubble Space Telescope

Centuries ago, people gazed into the night sky wondering what it was that they were looking at. When astronomers first started to study the night sky, like Galileo, Copernicus and even modern day astronomers, they all shared one goal, and that was to see further than anyone has ever before. The invention of the Hubble Space Telescope changed the study of astronomy forever. Astronomers were seeing and learning more in just days of the launch of the telescope than past astronomers had in their lifetimes. The Hubble Space Telescope is the most technologically advanced telescope to enter space. Its advanced technology has made it possible to obtain countless amounts of data about space and open many doors in the exploration of space. Its accuracy has and still is proving/debunking the myths of space.
Once NASA was given the right to start constructing The Hubble Space Telescope, or paraphrased as the HST, it cost $1.5 billion dollars to construct. The length of this massive piece of technology is 43.5ft long( 13.2m). The HST has a diameter of 14ft(4.2m) that allows it to store its hard drives, processors and other fragile technical organs inside the telescope. With its metal base, solar panels, mirrors and etc. protecting the telescopes fragile insides from floating space debris, the HST weighs in at 24,500 pounds, 11,110Kg(“The Telescope”).
Doran 2

The most technologically advanced part about the telescope is its mirrors and optical capturing system. “The HST is a large reflecting telescope whose mirror optics gather light from c...

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... with the rate at which the universe is accelerating, allows us to calculate how long it took for them to reach their current locations. The answer is about 14 billion years. The second method involves measuring the ages of the oldest star clusters. Globular star clusters orbiting our Milky Way are the oldest objects we have found and a detailed analysis of the stars they contain tells us that they formed about 13 billion years ago. The good agreement between these two very different methods is an encouraging sign that we are honing in on the universe’s true age.” Dark Energy is a theoretical repulsive force that counteracts gravity and causes the universe to expand at an accelerating rate. More is unknown than known about Dark Energy. There had been many theories about Dark Energy before HST, but no one had hard evidence. The HST provided evidence

In this essay, the author

  • Explains that dark energy is a theoretical repulsive force that counteracts gravity and causes the universe to expand at an accelerating rate.
  • Describes the hubble space telescope as the most technologically advanced telescope to enter space.
  • Explains that hubble's telescope is a large reflecting telescope whose mirror optics gather light from celestial objects and direct it into two cameras.
  • Explains that the launch of the hubble space telescope unlocked countless doors to understanding the creation and the long-term cosmos. the hst uploads 120 gigabytes of data every week.
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