A century ago, Edwin Hubble unveiled a groundbreaking discovery that revolutionized humanity’s understanding of the cosmos. His identification of a faint star in the Andromeda Galaxy, known as V1, ...

"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that the Coma Cluster of galaxies is 38 million light-years closer than it should ...

he saw that galaxies were moving away from each other at a rate constant to the distance between them (Hubble's Law). The further away they were, the faster they receded. This led to the ...

This proportionality between galaxies' distances and redshifts is today termed Hubble–Lemaître's law. Because the universe appeared to be uniformly expanding, Lemaître further realized that ...

The Hubble constant is one of the most important numbers in cosmology because it tells us how fast the universe is expanding, which can be used to determine the age of the universe and its history. It ...

100 years ago, Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help. If we could go back 101 years, we would encounter a time when ...

redder wavelengths), astronomers can use the Hubble–Lemaître law to calculate the Hubble constant. Then, when the cosmic clock ticked over to 379,000 years, the universe had cooled sufficiently ...