In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
Around 13.7 billion years ago, something collapsed. It fell outward into the nothingness that stretched in every direction, ...
Astronomers have released the most detailed image of the Andromeda galaxy with new clues about its evolutionary history to celebrate the 100th anniversary of Edwin Hubble's discovery that our ...
(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 ...
Hubble makes his mark 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 ...