Using variable stars as distance markers and the giant telescope on MountWilson, Edwin Hubble (then a young and little-known astronomer) was able to show that the Andromeda Nebula was over a ...
Home to the largest telescope of its day, MountWilson was the site of Hubble’s astronomical triumphs. In 1924 he had used the telescope’s then colossal 100-inch mirror to confirm that our ...
Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the MountWilson Observatory in ...