"Galactic Dance Suggests Universe Is Younger Than Previously Believed"
A study using Sloan Digital Sky Survey data suggests that the Universe may be younger than previously estimated, challenging conventional cosmological models. By analyzing satellite galaxy motions around massive groups, researchers found a notable excess of pairs exhibiting correlated velocity offsets, indicating the presence of recently accreted or infalling satellite galaxies. This discrepancy between observations and simulations implies that massive galaxy groups are younger in the real Universe, presenting a challenge to the current cosmological model and providing valuable insights into the Hubble tension problem.