The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...

UChicago-led study analyzes massive galaxy clusters mapped by the Dark Energy Survey, offers new way to probe cosmic laws ...

The universe's geometry can be classified as flat, closed (positive curvature), or open (negative curvature), determined by its density and expansion rate. Current cosmological models, primarily the ...

How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, ...