PTE Academic Write Essay · Problem and solution

Addressing Complex Challenges in Modern Space Exploration

A high-scoring sample essay with the plan behind it, the vocabulary that lifts it, and what the scoring traits reward.
  • 255 words
  • Problem and solution
  • intermediate
  • 20 minutes

The prompt

Space Exploration presents several complex challenges that require innovative solutions. Identify the main problems and propose feasible measures to address them, drawing on contemporary examples where appropriate.

20 minutes. Write 200 to 300 words. A BandLadder practice prompt, not a recalled exam question.

Problem and solution

Plan before you write

  1. 1

    Position

    While space exploration faces daunting physiological and logistical hurdles, international cooperation and advanced propulsion technologies offer viable pathways forward.

  2. 2

    Paragraph 2

    The primary challenge involves the severe health risks posed to astronauts by prolonged exposure to cosmic radiation and microgravity.

  3. 3

    Paragraph 3

    Logistical constraints, specifically the prohibitive costs and fuel requirements, can be mitigated through public-private partnerships and reusable rocket technology.

  • →Name one or two specific problems, not a general complaint.
  • →Match each solution to a problem and say who would carry it out.
  • →Keep problems and solutions in separate paragraphs so the structure is visible.

Model answer

Sample essay

High-scoring sample255 words. Use the structure and vocabulary, not the sentences: PTE flags memorised templates.

Space exploration represents the pinnacle of human ingenuity, yet it remains fraught with formidable obstacles. While the ambition to reach distant celestial bodies is laudable, the physiological and economic barriers are significant. This essay argues that mitigating health risks through medical innovation and reducing operational costs via private sector collaboration are essential steps for the future of space travel.

The most pressing concern involves the impact of space flight on human biology. Extended missions expose astronauts to hazardous cosmic radiation and the degenerative effects of microgravity on bone density and muscle mass. To address this, space agencies must prioritize the development of advanced shielding materials and pharmacological interventions. A contemporary example is NASA’s ongoing research into radiation-resistant biological countermeasures, which aim to protect crew members during long-duration missions to Mars.

Furthermore, the prohibitive financial burden of launching payloads into orbit remains a persistent constraint. Traditional government-funded programs often struggle with budget volatility, which limits the scope of exploration. The solution lies in the commercialization of space flight, exemplified by SpaceX’s successful deployment of reusable launch vehicles. By significantly lowering the cost per kilogram of cargo, these innovative systems enable more frequent and sustainable missions, effectively democratizing access to low-Earth orbit.

In conclusion, despite the inherent dangers and financial complexities of space exploration, these issues are not insurmountable. By investing in human health protections and fostering a robust private space industry, humanity can overcome current limitations. Continued technological advancement and global collaboration will ensure that the next era of exploration is both safe and economically viable.

Scoring traits

Why this scores well

This essay scores highly on linguistic range and formal register by using precise terminology and complex, cohesive sentence structures. A common error on this prompt is failing to provide specific examples, leading to vague generalizations that lack evidentiary support.

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8 words

Vocabulary from the essay

  • formidable

    inspiring fear or respect through being large

  • physiological

    relating to the functions of living organisms

  • degenerative

    causing a decline in physical or mental quality

  • countermeasures

    actions taken to counter a specific threat

  • prohibitive

    excessively high cost preventing purchase or use

  • volatility

    liability to change rapidly and unpredictably

  • democratizing

    making something accessible to a wider population

  • insurmountable

    too great to be overcome or addressed

See also the Write Essay guide.

Frequently asked questions

How long should a PTE essay be?+

Between 200 and 300 words; outside that range the form score drops to zero. This sample is 255 words, written for the 20-minute limit.

What type of essay is this?+

Problem and solution. Name one or two specific problems, not a general complaint.

What does PTE reward in the essay?+

This essay scores highly on linguistic range and formal register by using precise terminology and complex, cohesive sentence structures. A common error on this prompt is failing to provide specific examples, leading to vague generalizations that lack evidentiary support.

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