James Webb telescope captures 'knot' of galaxies in the early universe

@ 2022/10/21
The James Webb Space Telescope has produced its second revelatory image in as many days. Scientists using the observatory have discovered a tightly-packed "knot" of at least three galaxies that were forming around a quasar 11.5 billion years ago, just over 2 billion years after the Big Bang. The telescope's near-infrared spectrograph not only showed that the galaxies were orbiting each other at high speeds (up to 435 miles per second), but that this one of the most dense known areas of early galaxy formation. The density is unusually high enough that lead researcher Dominika Wylezalek suggested there may even be two "halos" of dark matter merging in this area.

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