  We present an analysis of the ellipticities of galaxy groups, derived from
the spatial distribution of member galaxies, revealing a notable incongruity
between the observed local galaxy groups and their counterparts in the Lambda
cold dark matter cosmology. Specifically, our investigation reveals a
substantial disparity in the ellipticities of observed groups with masses
\mbox{$10^{13.0}<M_{\rm{h}}<10^{14.5}\ {\rm M_{\odot}}\ h^{-1}$} exhibiting
significantly higher ellipticities (at a confidence level of approximately
$4\sigma$) compared to their simulated counterparts. Notably, the consistent
use of the same group finder for identifying galaxy groups in both
observational and simulated datasets underscores the robustness of this result.
This observation may imply a potential incongruence between the inferred age of
the Universe from observations and the predictions of the model, which aligns
with the younger Universe hypothesis suggested by the elevated fraction of
observed satellite pairs with correlated line-of-sight relative velocities
compared to simulations. Our findings significantly strengthen the plausibility
of a younger age for our Universe.
