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 ...

In 2018, the IAU, by vote after its 30th General Assembly in Vienna, adopted a resolution to rename the Hubble law to the Hubble-Lemaître law, to honor Lemaître for his 1927 dynamic solution to ...

This phenomenon, known as Hubble’s Law, was based on his studies of the redshift of galaxies and provided the first observational evidence of the universe's expansion—a critical element of the ...

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 ...