tech
March 4, 2026
Most Distant 'Jellyfish Galaxy' Discovered, 8.5 Billion Years Old: It Says Something Important About the Universe
Using data from the 'James Webb' telescope, scientists have identified what is likely the most distant 'jellyfish galaxy' recorded to date, whose light has traveled for about 8.5 billion years to reach Earth.
TL;DR
- The James Webb telescope has identified a likely most distant 'jellyfish galaxy' whose light has traveled for 8.5 billion years.
- Jellyfish galaxies are characterized by luminous gas streams resembling tentacles, caused by ram-pressure stripping in dense galaxy clusters.
- The newly discovered galaxy has a redshift of z = 1.156, indicating we observe it as it was when the universe was significantly younger.
- Bright blue knots of young stars are seen forming in the galaxy's gas tails, suggesting star formation outside the main galactic body.
- This discovery challenges previous assumptions that galaxy clusters in the early universe were not dense enough to cause such significant structural alterations.
- Researchers are seeking more observation time with the James Webb telescope for further study.
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