"Revisiting Dark Matter: New Insights into the Milky Way's Core and Edge"
A new study by physicists at MIT suggests that the Milky Way's gravitational core may contain less dark matter than previously thought, as stars at the galaxy's edge were found to be traveling more slowly than those closer to the center. Analyzing data from the Gaia space telescope and the Apache Point Observatory Galactic Evolution Experiment, researchers plotted the rotation curve of over 33,000 stars, revealing a surprising decline in velocity at farther distances, indicating a lower density of dark matter at the galaxy's center. This challenges previous assumptions and raises questions about our understanding of the Milky Way's composition.
