Dark matter highlights extra dimensions

September 5, 2005 | Source: [email protected]

University of Oxford scientists say extra spatial dimensions can be inferred from the perplexing behavior of dark matter, which behaves differently in small galaxies and large clusters of galaxies.

Three extra dimensions are altering the effects of gravity over very short distances of about a nanometer, they speculate, implying that the Universe is only about a nanometer wide in these three “directions.”