The Hubble Space Telescope images the distant spiral galaxy NGC 4693 in the Virgo Cluster and show signs that different parts of the galaxy rotate out of sync. Researchers report that the galaxy’s central region rotates differently from the spiral arms and the bulge.
Across the outlets, the described morphology suggests the spiral arms are not firmly connected to the central region, and the bulge appears to extend above the galaxy’s main plane. Together, these features point to a “decoupling” between the central region and the surrounding spiral structure and bulge. The reporting emphasizes that the observations provide hints about the galaxy’s past evolution, though the outlets do not attribute the effect to a specific cause.
Both sources frame the finding as part of a broader effort to understand why spiral galaxies differ from one another, noting that no two galaxies are exactly alike. While they agree on the main observational characteristics, they focus mainly on the apparent mismatch in rotation and the geometry of the arms and bulge.
