On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

The Andromeda galaxy helped Edwin Hubble settle a great debate in astronomy. Stocktrek Images via Getty Images A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known ...

Over the course of human history, perhaps no single object in the night sky has drawn more attention than the Andromeda ...

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 ...

Through the early 1900s, astronomers disagreed on whether the universe was home to a multitude of galaxies, so-called “island universes,” or contained entirely within the boundaries of the Milky Way ...

Join in for live views of our nearby galactic neighborhood from the dark skies at McDonald Observatory.

Astronomers, maybe more than anyone, appreciate what an island of perfection our Earth is. Our orbit may put us at a perfect distance from the sun for life to flourish, but it is too small to easily ...

The freshly spotted galaxy offers a rare glimpse of our universe when it was young, less than 300 million years after the Big Bang. The Hubble Space Telescope recently imaged a nearly edge-on view of ...

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 read by one of his ...

On Oct. 13, 1773, a French astronomer named Charles Messier discovered the "whirlpool galaxy," also known as Messier 51, or ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The famed Hubble Space Telescope ...