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 ...

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

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

Edwin Hubble. That's certainly partly the truth, but he couldn't have done it without the genius of others around him who paved the way for his discovery. "It's easy to romanticize Hubble and his ...

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 ...

In commemoration of Edwin Hubble's discovery of a Cepheid variable class star, called V1, in the neighboring Andromeda galaxy 100 years ago, astronomers partnered with the American Association of ...

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

when Edwin Hubble first discovered that the universe was expanding. Scolnic, an associate professor of physics at Duke University, explains it as trying to build the universe's growth chart ...

A century ago, Edwin Hubble first established that this ... the Milky way encompassed the entire universe. Overnight, Hubble's discovery turned cosmology upside down by unveiling an infinitely ...

It is named in honor of astronomer Edwin Hubble, who discovered in 1929 that galaxies are moving away from us at a speed proportional to their distance. This constant is crucial for understanding the ...