Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

A phonon-based theoretical framework for liquids marks a major step toward a universal equation of state with broad implications across physics, chemistry and engineering ...

According to our best possible understanding of the universe, regular matter is only a small fraction of the matter-energy ...

It can be found inside gas giants such as Jupiter and is briefly created during meteorite impacts or in laser fusion ...

The states in the middle group, with laws considered permissive, also saw an increase in deaths — they had 1,500 more deaths than expected. Together, these two groups of states had more than 7,000 ...