Dr Edwin Powell Hubble, who lends his name to the iconic Hubble Space Telescope, was one of the leading astronomers of the twentieth century. Born 135 years ago today on 20 November 1889 ...
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
(THE CONVERSATION) A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper ...