New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

The Hubble tension just got tenser — with new measurements revealing that the universe is expanding faster than our current understanding of physics can explain. Over the past decade, cosmology ...

Studying the universe with type Ia supernovae Type Ia supernovae, the explosive deaths of white dwarf stars, have long served as one of cosmology's most powerful tools. These stellar events occur ...