Physicists show knotted cosmic strings may have dominated the early universe before collapsing to create matter—a theory ...

Unusual radio signals from beneath Antarctica’s ice continue to defy explanation. Several years ago, scientists using a cosmic particle detector in Antarctica recorded a series of puzzling radio ...

How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the most important numbers in the universe ...

Researchers at CERN may be on the verge of explaining the universe’s missing gamma rays and hidden magnetic fields.

Advanced quantum spectroscopy at RIKEN reveals insights into antiproton properties, potentially challenging CPT invariance and our understanding of physics.