How did a Cepheid variable star help Edwin Hubble prove the Andromeda Nebula was a galaxy? Roger BradySan Quentin, California ...

Take a deep breath: the universe is not just big it’s mind-bogglingly, practically scandalously huge. And it’s growing. A ...

The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On ...

A hundred years ago, astronomer Edwin Hubble revealed a universe of galaxies that existed beyond ours. His influence in astronomy continues to this day.

Edwin Hubble uses the telescope at the Mount Wilson Observatory. Photo by Ann Ronan Pictures/Print Collector/Getty Images Print Collector. Estimating distances in astronomy is challenging.

Edwin Hubble is the namesake for NASA’s Hubble Space Telescope, which has spent decades observing faraway galaxies. NASA via AP. NASA named its flagship space observatory after Hubble, ...

In short, Edwin Hubble is the man who wiped away the ancient universe and discovered a new universe that would shrink humanity's self-perception into being an insignificant speck in the cosmos.

That Rich was presenting the story of Edwin Hubble at the January 2025 AAS meeting was symbolic, for it was at the 33rd meeting of the AAS, a century ago on January 1, 1925 in Washington, D.C ...

Simply put, Hubble’s work is responsible for establishing our modern view of the universe. Everything we study today is based on his work.” After 400 years of uncertainty, Edwin Hubble had won ...

Space Week is Oct. 4-10, so here are some of NASA’s latest discoveries and why Edwin Hubble’s history-making photo, taken on this day in 1923, revolutionized astronomy. This image above is ...

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 ...