Asteroids are large space objects made of rock and ice. There are hundreds of thousands of asteroids in our solar system. Though we often hear ideas about establishing colonies of humans to live and work on our Moon or our neighboring planet, Mars, some think that sending people to an asteroid would actually be the best colonization option for a number of reasons. Low Gravity To begin with, asteroids are often much smaller than planets, so they have lower gravity. When landing a spaceship, the craft would not be pulled as strongly or as forcefully toward the asteroid's surface, making the landing safer than landing on the Moon or Mars; it would also allow a spacecraft to carry much more equipment needed to set up the colony. It would also be easier for the spacecraft to take off again, so the spaceship would need to carry considerably less fuel for the trip back to Earth. Mining Valuable Metals Next some asteroids are rich in valuable elements and precious metals that are relatively rare on Earth, such as gold and platinum. An asteroid colony would be extremely profitable and a good source of these raw materials. The colonists or businesses sponsoring them could more than pay for the cost of their support by mining minerals and sending them back to Earth. Easy to Reach Finally, asteroids are a good option for colonization because some of them would be very easy to reach. There are a number of asteroids that periodically come within or near Earth's orbit Some of them actually get closer to Earth than our Moon. So these asteroids would be much easier and more affordable to get to and get back from than a planet like Mars, which would require a two-year trip in each direction.
The discussion is about whether is it practical and affordable to conduct the asteroids colonization. The article has mentioned three points to support the statement while the lecturer has opposite opinions which I will elaborate in the following essay.
To begin with, what was addressed in the article is that the gravity in asteroids is generally lower and it made the spaceship landing easier. Also, more equipment can be carried and less fuel is needed to take off. Considering the advantages that result from lower gravity, it makes the colonization in asteroids easier to achieve. However, the lecturer is against this idea, in that certain healthy problems triggered by low gravity are dismissed, such as losing muscles and bone density. These health issues will cause harm to people who arrived in asteroids. Therefore, this is a risk that should be considered.
Furthermore, the article pointed out that there are valuable metals, like gold and platinum, in asteroids that can be transported for sell and hence makes the colonization profitable. Nonetheless, the lecturer contends that the cost related to the transportation of those metals can actually outweigh the profit. Additionally, the price of valuable metals may drop if there is large amount of them, transported back from the asteroids, are being sold on the market. Then the expected return of profit will decrease.
Finally, the passage mentioned that the asteroids are usually closer to the earth than other planets, which makes the travel easier. But the lecturer emphasizes that though the distance is shorter for people to travel there, it may get farther to travel back due to the change of orbits is unusual and can not always be predicted. Therefore, getting back from the asteroids can be challenging.
In conclusion, the lecturer disagrees with the idea that colonizing the asteroids is good for his considering on health problem, extra expensed on transporting metals and difficult to travel back due to the orbit change.
Grammar and spelling errors:
Line 1, column 79, Rule ID: POSSESIVE_APOSTROPHE[2]
Message: Possible typo: apostrophe is missing. Did you mean 'asteroids'' or 'asteroid's'?
Suggestion: asteroids'; asteroid's
...practical and affordable to conduct the asteroids colonization. The article has mentioned...
^^^^^^^^^
Line 5, column 131, Rule ID: FOR_SELL[1]
Message: Did you mean 'for sale'?
Suggestion: for sale
...m, in asteroids that can be transported for sell and hence makes the colonization profit...
^^^^^^^^
Line 9, column 222, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...to travel back due to the orbit change.
^^^
Transition Words or Phrases used:
actually, also, but, finally, furthermore, hence, however, if, may, nonetheless, so, then, therefore, while, in conclusion, such as, to begin with
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 22.0 10.4613686534 210% => Less to be verbs wanted.
Auxiliary verbs: 11.0 5.04856512141 218% => Less auxiliary verb wanted.
Conjunction : 9.0 7.30242825607 123% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 21.0 22.412803532 94% => OK
Preposition: 43.0 30.3222958057 142% => OK
Nominalization: 7.0 5.01324503311 140% => OK
Performance on vocabulary words:
No of characters: 1696.0 1373.03311258 124% => OK
No of words: 323.0 270.72406181 119% => OK
Chars per words: 5.25077399381 5.08290768461 103% => OK
Fourth root words length: 4.23936324884 4.04702891845 105% => OK
Word Length SD: 2.80242711828 2.5805825403 109% => OK
Unique words: 180.0 145.348785872 124% => OK
Unique words percentage: 0.557275541796 0.540411800872 103% => OK
syllable_count: 522.0 419.366225166 124% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 8.0 8.23620309051 97% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 6.0 2.5761589404 233% => Less preposition wanted as sentence beginnings.
Performance on sentences:
How many sentences: 16.0 13.0662251656 122% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 51.1070796832 49.2860985944 104% => OK
Chars per sentence: 106.0 110.228320801 96% => OK
Words per sentence: 20.1875 21.698381199 93% => OK
Discourse Markers: 9.125 7.06452816374 129% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 9.0 4.33554083885 208% => Less positive sentences wanted.
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0828670886936 0.272083759551 30% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0290937246614 0.0996497079465 29% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.028975662292 0.0662205650399 44% => Sentences are similar to each other.
Paragraph topic coherence: 0.0493417705286 0.162205337803 30% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.00973436303371 0.0443174109184 22% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 13.4 13.3589403974 100% => OK
flesch_reading_ease: 51.18 53.8541721854 95% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.1 11.0289183223 101% => OK
coleman_liau_index: 13.17 12.2367328918 108% => OK
dale_chall_readability_score: 8.98 8.42419426049 107% => OK
difficult_words: 89.0 63.6247240618 140% => OK
linsear_write_formula: 8.5 10.7273730684 79% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
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Write the essay in 20 minutes.
It is not exactly right on the topic in the view of e-grader. Maybe there is a wrong essay topic.
Rates: 3.33333333333 out of 100
Scores by essay e-grader: 1.0 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.