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16 August 2026

Webb telescope black hole discovery

The topic relates to advancements in space technology and scientific discovery, which serves as useful context for questions regarding India's space program or general scientific progress in GS3.

1 min read 1 questions 1 prelims

Notes

  • The James Webb Space Telescope (JWST) has identified a supermassive black hole existing 660 million years after the Big Bang, during the 'cosmic dawn'.
  • The black hole is surrounded by a dense, thick envelope of hydrogen gas, which indicates a phase of rapid growth.
  • The gas envelope scatters light, which can lead to an overestimation of the black hole's mass by up to 100 times.
  • This discovery suggests that previous mass estimates for similar early-universe black holes may require significant recalibration.

Questions

  1. How do recent observations from the James Webb Space Telescope regarding early-universe black holes challenge our understanding of galactic evolution and mass estimation techniques? 150 words
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Prelims

  1. With reference to the recent findings by the James Webb Space Telescope, what is the significance of the dense hydrogen gas envelope surrounding early supermassive black holes?

Syllabus

Topics

Sources

250words.in · https://250words.in/daily/2026-08-16/webb-telescope-black-hole-discovery