In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
“We [will be able to] move quickly and map out very large areas of the sky,” adds Josh Schlieder, the telescope’s wide-field ...
The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with more than 200 million individually resolved stars.
(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 ...
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 ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Chris Impey, University of Arizona (THE CONVERSATION) A hundred years ago ...