Astronomers Discover Non-Spinning Galaxy in Early Universe
The Galaxy That Forgot to Spin
Universe Today
Image: Universe Today
Astronomers using the James Webb Space Telescope have identified a unique galaxy, XMM-VID1-2075, in the early universe that is not spinning at all. This challenges existing theories of galaxy formation, as such galaxies are expected to be extremely rare.
- 01XMM-VID1-2075 is one of the most massive galaxies in the early universe, containing several times more stars than the Milky Way.
- 02The galaxy has stopped forming new stars and exhibits chaotic star movement rather than orderly rotation.
- 03A leading theory suggests that a head-on collision between two galaxies may have caused this lack of rotation.
- 04The discovery challenges existing computer simulations that predict non-rotating galaxies should be rare in the early universe.
- 05The team is now searching for more non-rotating galaxies to reassess our understanding of galaxy formation.
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Astronomers have made a groundbreaking discovery using the James Webb Space Telescope, identifying a galaxy named XMM-VID1-2075 that is not spinning at all. This galaxy, which is among the most massive in the early universe, contains several times more stars than the Milky Way and has ceased forming new stars. Instead of the expected orderly rotation, its stars exhibit chaotic movement, akin to a swarm of bees without direction. The leading hypothesis for this unusual state is a catastrophic collision between two galaxies spinning in opposite directions, which may have canceled out their rotational motion. This finding is significant because, while computer simulations of galaxy formation do predict the existence of non-rotating galaxies, they consider them to be extremely rare. The discovery of XMM-VID1-2075 raises questions about current models of galaxy formation, prompting astronomers to search for additional examples to better understand the processes that govern the birth and evolution of galaxies in the early universe.
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