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 article and the lecture both discuss whether asteroids are good colonies for humans. The author of the article considers that asteroids are good colonies for humans. However, the lecturer disputes the claim made in the article. His position is that asteroids are not as good as what the author of the article thinks.
According to the article, asteroids are often smaller than planets, so they have lower gravity that can make spaceships land and take off easier. Moreover, it says that a spacecraft can carry much more equipment needed to set up the colony. Nevertheless, the lecturer addresses some concern. He says that low gravity may also cause some risks. For example, people may lose their muscle mass and their bone density may also decrease. Therefore, low gravity may lead to serious health problems for humans.
Secondly, the article believes that asteroids may be rich in valuable elements and precious metals that can send them back to Earth and make a big fortune. However, the lecturer does not agree with the idea. He thinks that there may be some additional factors that stop them from profiting. For instance, the cost for sending those metals back to Earth may be so high that it reduces the profits. Also, when mining becomes popular, the quantity of the precious metals will rise, and the price will finally fall. Thus, mining those metals may not make people much money.
Finally, the article suggests that asteroids are easier to reach from Earth than other planets because they are nearer to Earth than other planets. Nonetheless, the lecturer still had some issues with that thought. He says that easy to arrive does not mean easy to return. To be more specific, the orbit of the asteroids may be unusual. When an asteroid is near to the Earth at one time, it may no longer stay close to Earth later, and that would be a challenge for humans to return to Earth.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2023-09-09 | xujia | 75 | view |
| 2023-07-18 | YasamanEsml | 32 | view |
| 2023-07-18 | YasamanEsml | 3 | view |
| 2023-07-18 | YasamanEsml | 3 | view |
| 2023-07-18 | YasamanEsml | 3 | view |
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Comments
Essay evaluations by e-grader
Transition Words or Phrases used:
also, finally, however, if, may, moreover, nevertheless, nonetheless, second, secondly, so, still, therefore, thus, for example, for instance
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 14.0 10.4613686534 134% => OK
Auxiliary verbs: 16.0 5.04856512141 317% => Less auxiliary verb wanted.
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 16.0 12.0772626932 132% => OK
Pronoun: 29.0 22.412803532 129% => Less pronouns wanted
Preposition: 27.0 30.3222958057 89% => OK
Nominalization: 3.0 5.01324503311 60% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1576.0 1373.03311258 115% => OK
No of words: 326.0 270.72406181 120% => OK
Chars per words: 4.83435582822 5.08290768461 95% => OK
Fourth root words length: 4.24917287072 4.04702891845 105% => OK
Word Length SD: 2.27672671 2.5805825403 88% => OK
Unique words: 169.0 145.348785872 116% => OK
Unique words percentage: 0.518404907975 0.540411800872 96% => OK
syllable_count: 482.4 419.366225166 115% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => OK
Article: 11.0 8.23620309051 134% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 21.0 13.0662251656 161% => OK
Sentence length: 15.0 21.2450331126 71% => The Avg. Sentence Length is relatively short.
Sentence length SD: 34.5431472935 49.2860985944 70% => OK
Chars per sentence: 75.0476190476 110.228320801 68% => OK
Words per sentence: 15.5238095238 21.698381199 72% => OK
Discourse Markers: 6.71428571429 7.06452816374 95% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 9.0 4.33554083885 208% => Less positive sentences wanted.
Sentences with negative sentiment : 7.0 4.45695364238 157% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0970104261323 0.272083759551 36% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0333412013005 0.0996497079465 33% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0280541469354 0.0662205650399 42% => Sentences are similar to each other.
Paragraph topic coherence: 0.0645009374456 0.162205337803 40% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.026428798525 0.0443174109184 60% => OK
Essay readability:
automated_readability_index: 9.1 13.3589403974 68% => Automated_readability_index is low.
flesch_reading_ease: 64.71 53.8541721854 120% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.0 11.0289183223 73% => OK
coleman_liau_index: 10.44 12.2367328918 85% => OK
dale_chall_readability_score: 7.92 8.42419426049 94% => OK
difficult_words: 73.0 63.6247240618 115% => OK
linsear_write_formula: 6.0 10.7273730684 56% => Linsear_write_formula is low.
gunning_fog: 8.0 10.498013245 76% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?
---------------------
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
---------------------
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.
Transition Words or Phrases used:
also, finally, however, if, may, moreover, nevertheless, nonetheless, second, secondly, so, still, therefore, thus, for example, for instance
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 14.0 10.4613686534 134% => OK
Auxiliary verbs: 16.0 5.04856512141 317% => Less auxiliary verb wanted.
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 16.0 12.0772626932 132% => OK
Pronoun: 29.0 22.412803532 129% => Less pronouns wanted
Preposition: 27.0 30.3222958057 89% => OK
Nominalization: 3.0 5.01324503311 60% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1576.0 1373.03311258 115% => OK
No of words: 326.0 270.72406181 120% => OK
Chars per words: 4.83435582822 5.08290768461 95% => OK
Fourth root words length: 4.24917287072 4.04702891845 105% => OK
Word Length SD: 2.27672671 2.5805825403 88% => OK
Unique words: 169.0 145.348785872 116% => OK
Unique words percentage: 0.518404907975 0.540411800872 96% => OK
syllable_count: 482.4 419.366225166 115% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => OK
Article: 11.0 8.23620309051 134% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 21.0 13.0662251656 161% => OK
Sentence length: 15.0 21.2450331126 71% => The Avg. Sentence Length is relatively short.
Sentence length SD: 34.5431472935 49.2860985944 70% => OK
Chars per sentence: 75.0476190476 110.228320801 68% => OK
Words per sentence: 15.5238095238 21.698381199 72% => OK
Discourse Markers: 6.71428571429 7.06452816374 95% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 9.0 4.33554083885 208% => Less positive sentences wanted.
Sentences with negative sentiment : 7.0 4.45695364238 157% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0970104261323 0.272083759551 36% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0333412013005 0.0996497079465 33% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0280541469354 0.0662205650399 42% => Sentences are similar to each other.
Paragraph topic coherence: 0.0645009374456 0.162205337803 40% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.026428798525 0.0443174109184 60% => OK
Essay readability:
automated_readability_index: 9.1 13.3589403974 68% => Automated_readability_index is low.
flesch_reading_ease: 64.71 53.8541721854 120% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.0 11.0289183223 73% => OK
coleman_liau_index: 10.44 12.2367328918 85% => OK
dale_chall_readability_score: 7.92 8.42419426049 94% => OK
difficult_words: 73.0 63.6247240618 115% => OK
linsear_write_formula: 6.0 10.7273730684 56% => Linsear_write_formula is low.
gunning_fog: 8.0 10.498013245 76% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?
---------------------
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
---------------------
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.