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ScienceQuiet 9d · day 9

JWST detects distant galaxy allowing ionizing radiation to escape

Observations of the exceptionally blue, gravitationally lensed galaxy EBG-1 suggest it may be unusually transparent to ionizing radiation.

What to know

  • JWST observations of the distant galaxy EBG-1 (redshift 9.244, ~530 million years after the Big Bang) suggest it is unusually transparent to ionizing radiation.
  • The galaxy is exceptionally blue and gravitationally lensed, making it observable despite its extreme distance.
  • The finding was published as a preprint on arXiv on October 16, 2026.

“Astronomers using the James Webb Space Telescope (JWST) have found evidence that a distant, exceptionally blue galaxy may allow most of its ionizing radiation to escape into space.”

Phys.org · Phys.org ↗ · Oct 29

James Webb Space Telescope (JWST) observation instrument

How it unfolded 1 development · click the chart to see its coverage articlesposts

Peak 2 pieces in 3h at Oct 30, 9 AM; 3 pieces over 9 days (2 articles · 1 post) Oct 30, 9 AM — 2 pieces · 2 articles — Google News 1, Newswires 1Oct 30, 12 PM — quietOct 30, 3 PM — quietOct 30, 6 PM — 1 piece · 1 post — Hacker News 1Oct 30, 9 PM — quietOct 31, 12 AM — quietOct 31, 3 AM — quietOct 31, 6 AM — quietOct 31, 9 AM — quietOct 31, 12 PM — quietOct 31, 3 PM — quietOct 31, 6 PM — quietOct 31, 9 PM — quietNov 1, 12 AM — quietNov 1, 2 AM — quietNov 1, 5 AM — quietNov 1, 8 AM — quietNov 1, 11 AM — quietNov 1, 2 PM — quietNov 1, 5 PM — quietNov 1, 8 PM — quietNov 1, 11 PM — quietNov 2, 2 AM — quietNov 2, 5 AM — quietNov 2, 8 AM — quietNov 2, 11 AM — quietNov 2, 2 PM — quietNov 2, 5 PM — quietNov 2, 8 PM — quietNov 2, 11 PM — quietNov 3, 2 AM — quietNov 3, 5 AM — quietNov 3, 8 AM — quietNov 3, 11 AM — quietNov 3, 2 PM — quietNov 3, 5 PM — quietNov 3, 8 PM — quietNov 3, 11 PM — quietNov 4, 2 AM — quietNov 4, 5 AM — quietNov 4, 8 AM — quietNov 4, 11 AM — quietNov 4, 2 PM — quietNov 4, 5 PM — quietNov 4, 8 PM — quietNov 4, 11 PM — quietNov 5, 2 AM — quietNov 5, 5 AM — quietNov 5, 8 AM — quietNov 5, 11 AM — quietNov 5, 2 PM — quietNov 5, 5 PM — quietNov 5, 8 PM — quietNov 5, 11 PM — quietNov 6, 2 AM — quietNov 6, 5 AM — quietNov 6, 8 AM — quietNov 6, 11 AM — quietNov 6, 2 PM — quietNov 6, 5 PM — quietNov 6, 8 PM — quietNov 6, 11 PM — quietYesterday, 2 AM — quietYesterday, 5 AM — quietYesterday, 8 AM — quietYesterday, 11 AM — quietYesterday, 2 PM — quietYesterday, 5 PM — quietYesterday, 8 PM — quietYesterday, 11 PM — quietToday, 2 AM — quietToday, 5 AM — quietToday, 8 AM — quietToday, 11 AM — quiet 1
Oct 31Nov 1Nov 2Nov 3Nov 4Nov 5Nov 6yesterdaynow · 1:09 PM ET
  1. 1

    Phys.org publishes peer-reviewed analysis of JWST findings

    Phys.org reports on the JWST discovery of galaxy EBG-1, highlighting that the exceptionally blue, distant galaxy may be unusually permeable to ionizing radiation.

    1. first by Phys.org, 9d ago

  2. background

    Astronomers post findings on exceptionally blue galaxy EBG-1 to arXiv — A paper describing JWST observations of the gravitationally lensed galaxy EBG-1 at redshift 9.244 is submitted to the arXiv preprint server, presenting evidence that the galaxy may allow most of its ionizing radiation to escape.