A century ago, Edwin Hubble revolutionized our understanding of the universe by proving that the Milky Way is just one of ...

A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts ...

The beloved Hubble Space Telescope is reaching its 35th anniversary, and over the years it has taken some stunning images.

The answer to the question as to the nature of the nebulae was still in doubt. Enter Edwin Hubble. Hubble and the Hooker 100-inch Telescope Hubble arrived at Mount Wilson in the fall of 1919 ...

Edwin Powell Hubble is renowned for determining that there are other galaxies in the Universe beyond the Milky Way, and for observing that the universe is expanding at a constant rate. Hubble was ...

In the 1920s Edwin Hubble used the newly built telescope at Mount Wilson Observatory to study fuzzy objects known as nebulae. Back then, astronomers were arguing whether these nebulae are clouds ...

The Hubble constant is one of the most important numbers in cosmology because it tells us how fast the universe is expanding, which can be used to determine the age of the universe and its history. It ...

Just about everyone has heard of NASA’s Hubble Space Telescope — not too surprising considering that it has been with us for ...

On 1 January 1925, US astronomer Henry Norris Russell made a startling announcement to the American Astronomical Society in Washington DC: observations by fellow astronomer Edwin Hubble showed ...