00:00Scientists may have discovered a hidden force that could reshape our understanding of dark matter.
00:05Dark matter is invisible, but its gravity helps form galaxies and the large-scale structure of the universe.
00:12Researchers tested whether dark matter particles also pull on each other through an unseen force.
00:18Surprisingly, the extra attraction didn't make the universe more clumped together.
00:23Instead, the particles became effectively lighter over time, reducing their gravitational pull.
00:28That effect actually slowed the growth of cosmic structures in most of the models studied.
00:33The findings could help explain small differences between current observations and standard cosmology.
00:39Future space surveys may reveal whether this hidden force is real.
00:44Opening a new chapter in our understanding of the universe.