In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

The idea that the universe is expanding was first proposed by Edwin Hubble in the late 1920s and ... an alternative notion ...

A variation on the theory of quantum gravity — the unification ... The universe's expansion was first identified by Edwin ...

Edwin Powell Hubble is renowned for determining ... and confirmation of the big bang theory. Hubble calculated it to be about 2 billion years ago, but more recent estimates have revised that ...

Even Einstein was reluctant to endorse this extension of his theory of general relativity. In 1929 at the Mt. Wilson Observatory in California, Edwin Hubble discovered that galaxies were moving ...

Edwin Hubble's observations of V1 became the critical ... He was partly right in that Einstein's theory of special relativity explained redshift as an effect of time-dilation that is proportional ...

It gets its name from UChicago alum Edwin Hubble, who was first to calculate the constant from ... that could account for the discrepancy is “dark radiation.” This theory proposes the existence of a ...

On January 29, 1931, the world’s premier physicist, Albert Einstein, and its foremost astronomer, Edwin ... before Hubble detected cosmic expansion, Einstein had fashioned a theory, general ...

Edwin Hubble was young and ambitious ... priest Georges Lemaitre made that connection by realizing that the theory of general relativity described an expanding universe. He recognized that ...

On January 29, 1931, the world's premier physicist, Albert Einstein, and its foremost astronomer, Edwin ... before Hubble detected cosmic expansion, Einstein had fashioned a theory, general ...

Hubble makes his mark Edwin Hubble was young and ambitious ... Georges Lemaitre made that connection by realizing that the theory of general relativity described an expanding universe.