Scientists from the University of Durham may have solved a decades-old puzzle regarding the distribution of the eleven small satellite galaxies that surround the Milky Way. The Milky Way is not alone.

The Atacama Cosmology Telescope in Chile has released its final batch of data after 15 years — and it proves that the Hubble tension is very real.

The clearest pictures yet of the newborn cosmos strengthen the prevailing model of the universe but deepen a mystery about its expansion rate. Measurements of this rate, known as the Hubble constant, ...

Scientists might have just found the "fifth force" working in space. According to them, this force might be mediated by a hypothetical particle called "symmetron" or also known as "domain walls", ...