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 t

The article states that sending people to an asteroid would actually be the best colonization option for a number of reasons. However the professor explains that colonization is not practical idea and he refuses each of the article's reason.

Firstly, the article claims that asteroids have low gravity so when the spacecraft land on asteroid, the craft would not be pulled forcefully toward the asteroid's surface. However, the professor refuses this point by saying that low gravity produces many risks to astronauts' health. He states that exposing to low gravity few months cause losing of muscle mass and bone density loss. So, exposing to long term of low gravity will cause health problems.
Secondly, the article claims that asteroid colony will be extremely profitable because some asteroids are rich in valuable elements that are relatively rare on Earth. However, the professor contends that extracting valuable minerals from asteroids is not the whole picture as there is additional factors. First, the cost to support the colony is high. Second, no guarantee to capture precious minerals and that will reduce the additional market prices.
Thirdly, The article avers that asteroids are a good option for colonization because they are close to Earth and easy to reach. However, the professor contends that even though there are some asteroids are easy to reach, some are not easy to return. Also, the distance between the Earth and asteroids are great and it is a challenge for the spacecraft to return back. So, reaching to asteroids and guarantee returning back are challenge.

Votes
Average: 7.8 (1 vote)
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Grammar and spelling errors:
Line 1, column 127, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: However,
...ization option for a number of reasons. However the professor explains that colonizatio...
^^^^^^^
Line 4, column 276, Rule ID: THERE_S_MANY[4]
Message: Did you mean 'there are additional factors'?
Suggestion: there are additional factors
...m asteroids is not the whole picture as there is additional factors. First, the cost to support the colony ...
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Line 5, column 355, Rule ID: RETURN_BACK[1]
Message: Use simply 'return'.
Suggestion: return
...it is a challenge for the spacecraft to return back. So, reaching to asteroids and guarante...
^^^^^^^^^^^
Line 5, column 408, Rule ID: RETURN_BACK[1]
Message: Use simply 'returning'.
Suggestion: returning
...So, reaching to asteroids and guarantee returning back are challenge.
^^^^^^^^^^^^^^

Transition Words or Phrases used:
actually, also, first, firstly, however, second, secondly, so, third, thirdly

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 17.0 10.4613686534 163% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 16.0 22.412803532 71% => OK
Preposition: 23.0 30.3222958057 76% => OK
Nominalization: 4.0 5.01324503311 80% => OK

Performance on vocabulary words:
No of characters: 1337.0 1373.03311258 97% => OK
No of words: 256.0 270.72406181 95% => More content wanted.
Chars per words: 5.22265625 5.08290768461 103% => OK
Fourth root words length: 4.0 4.04702891845 99% => OK
Word Length SD: 2.56297335091 2.5805825403 99% => OK
Unique words: 136.0 145.348785872 94% => More unique words wanted.
Unique words percentage: 0.53125 0.540411800872 98% => OK
syllable_count: 418.5 419.366225166 100% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 0.0 2.5761589404 0% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 18.0 21.2450331126 85% => The Avg. Sentence Length is relatively short.
Sentence length SD: 33.7621482294 49.2860985944 69% => OK
Chars per sentence: 95.5 110.228320801 87% => OK
Words per sentence: 18.2857142857 21.698381199 84% => OK
Discourse Markers: 5.5 7.06452816374 78% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 4.0 4.19205298013 95% => 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: 1.0 4.27373068433 23% => More facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.128252527549 0.272083759551 47% => OK
Sentence topic coherence: 0.0475047995095 0.0996497079465 48% => OK
Sentence topic coherence SD: 0.0414003448382 0.0662205650399 63% => OK
Paragraph topic coherence: 0.0777424050125 0.162205337803 48% => OK
Paragraph topic coherence SD: 0.0283822822018 0.0443174109184 64% => OK

Essay readability:
automated_readability_index: 12.3 13.3589403974 92% => Automated_readability_index is low.
flesch_reading_ease: 53.21 53.8541721854 99% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 10.3 11.0289183223 93% => OK
coleman_liau_index: 13.0 12.2367328918 106% => OK
dale_chall_readability_score: 8.11 8.42419426049 96% => OK
difficult_words: 58.0 63.6247240618 91% => OK
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 9.2 10.498013245 88% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?

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Rates: 78.3333333333 out of 100
Scores by essay e-grader: 23.5 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.