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 ...

Compass and scale image titled "Cepheid Variable Star V1 in M31 HST WFC3/UVIS." Four boxes each showing a bright white star in the center surrounded by other stars. Each box has a correlating date ...

A hundred years ago, astronomer Edwin Hubble dramatically ... also called M31, was nearly a million light years away—too remote to be a part of the Milky Way. Hubble's work opened the door ...

A hundred years ago, astronomer Edwin Hubble dramatically ... also called M31, was nearly a million light years away – too remote to be a part of the Milky Way. Hubble’s work opened the ...

Enter Edwin Hubble. Hubble and the Hooker ... Fast forward to four years later, October 5/6, 1923. Hubble was reviewing plates he'd taken of Andromeda (M31) with the 100-inch reflector on a ...

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 ...