Summary:
- Gravitational lensing is a phenomenon where the gravity of massive objects, like galaxies, bends and distorts the light from distant objects behind them.
- Observations of this gravitational lensing have revealed a twist in the way the universe is expanding, suggesting that the expansion may not be as uniform as previously thought.
- This new finding challenges the standard model of cosmology and could lead to a better understanding of the mysterious dark matter and dark energy that are believed to drive the expansion of the universe.