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Galaxies Grow More Chaotic With Age, Study Finds

A groundbreaking study using the SAMI Galaxy Survey shows that a galaxy's age is the key factor in its orderly or chaotic movement.

  • New research reveals that as galaxies age, they become more chaotic, moving away from orderly rotation to more random orbits.
  • The study, published in the Monthly Notices of the Royal Astronomical Society, used data from the SAMI Galaxy Survey, observing 3,000 galaxies.
  • Age is identified as the primary factor influencing galactic behavior, over environmental conditions or mass.
  • Older galaxies tend to cease star formation, contributing to their chaotic movement.
  • Future research aims to create more detailed galaxy evolution simulations, utilizing the Hector Galaxy Survey's higher spectral resolution.
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