The 2025 US stamps offer up a lot of familiar faces, among them Betty White. We’ll always miss her.

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

Yet, a century ago, its discovery by Edwin Hubble opened humanity's eyes as to how large the universe really is, and revealed that our Milky Way galaxy is just one of hundreds of billions of ...

Edwin Hubble's discovery of a Cepheid variable star in the Andromeda galaxy in 1923 revealed that the universe extends far beyond the Milky Way, fundamentally altering our understanding of the cosmos.

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

Circa 1945: Astronomer Dr. Edwin Powell Hubble sitting in a chair at a desk reading a journal. A staff member at Mt. Wilson Observatory, he was the first scientist to offer observational evidence ...

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 ...

(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 read by ...

A century ago, Edwin Hubble first established that this so-called 'spiral nebula' was actually very far outside our own Milky Way galaxy -- at a distance of approximately 2.5 million light-years ...

Yet, a century ago, its discovery by Edwin Hubble, then an astronomer at Carnegie Observatories, opened humanity's eyes as to how large the universe really is, and revealed that our Milky Way ...