A physicist proposes that the universe is not empty space, but is a viscous fluid, fueling the expansion and contraction we see.

Nuclear fusion, the process that powers every star in the observable universe, has moved from theoretical physics into the realm of real laboratory results. On December 5, 2022, scientists achieved ...

Tiny highly uniform magnetic fields are known to pervade the universe, influencing various cosmological processes. To date, however, the physical mechanisms underpinning the generation of these fields ...

It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's ...