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 ...

Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside ...

“We [will be able to] move quickly and map out very large areas of the sky,” adds Josh Schlieder, the telescope’s wide-field ...

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

Hubble enters the fray Edwin Hubble joined the Mount Wilson Observatory team in California in 1919, just two years after the observatory’s Hooker Telescope, which was the largest telescope in ...

A century ago, Edwin Hubble first established that this ... In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe.

Edwin Hubble was young and ambitious. At the of age 30, he arrived at Mount Wilson Observatory in Southern California just in time to use the new Hooker 100-inch telescope, at the time the largest ...

Ancient ‘white dwarf’ stars explode and die in more ways than was thought, and observing these violent cosmic deaths could ...

Edwin Hubble seated at the 2.5-metre reflecting telescope at the Mount Wilson Observatory in California. (Edwin P. Hubble Papers/Huntington Library) He identified a star called V1, a Cepheid ...

For her pains, she was affectionately nicknamed “the mother of Hubble.” It was under her decades of leadership that observations made by the telescope helped build on Edwin Hubble’s work ...