String theorists are betting that extra dimensions do indeed exist; in fact, the equations that describe superstring theory require a universe with no fewer than 10 dimensions. But even physicists ...

At the bottom of the chart are the fundamental particles—quarks, bosons (eg Higgs, w +, w -, z ), protons, neutrons, ...

Biggest vs smallest—how do we measure up in the grand scheme of the universe? Explore the fascinating scales of existence, ...

The findings suggest that astronomers’ widely accepted cosmology models might be missing something—meaning the longstanding mystery known as the “Hubble tension” continues ...

Using the largest gravitational wave detector ever made, we have confirmed earlier reports that the fabric of the universe is constantly ... we need a detector the size of our galaxy.