UPSC Mains 2022 GS3 Q15 — Space Technology
Launched on 25th December, 2021, James Webb Space Telescope has been much in the news since then. What are its unique features which make it superior to its predecessor Space Telescopes? What are the key goals of this mission? What potential benefits does it hold for the human race? (Answer in 250 words)
Question Decoded — examiner's intent
- Directive verbs
- What are
- Scope keywords
- James Webb Space Telescopeunique featuressuperior to its predecessor Space Telescopeskey goalspotential benefits does it hold for the human race
- Implicit sub-parts
- Technical comparison specifically with Hubble Space Telescope and Spitzer
- Analysis of 'First Light' and its significance in cosmic evolution
- Societal and long-term scientific impacts beyond immediate space exploration
- Common pitfalls
- Spending too many words on the launch vehicle or date instead of features
- Failing to mention specific technical superiorities like the Mid-Infrared Instrument (MIRI) or the 6.5m gold-plated mirror
- Confusing goals (astronomical objectives) with benefits (knowledge/tech-spillover/inspiration for humanity)
- Neglecting the significance of the Lagrange Point 2 (L2) orbit compared to Hubble's Low Earth Orbit
- Dimensions required
- Technological (Hardware/Spectroscopy)Astrophysical (Cosmology/Origins)Philosophical/Humanistic (Evolutionary context)Comparative (Succession from predecessors)
- Marks allocation hint
Allocate 50-60 words for technical superiority (Infrared focus, mirror size, L2 orbit), 80-90 words for the four primary mission goals (early universe, galaxy assembly, birth of stars, planetary systems), and 70-80 words on human benefits including spin-off tech and understanding our place in the universe.
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