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 ...

This article was originally featured on The Conversation. A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American ...

Hubble enters the fray Edwin Hubble joined the Mount Wilson Observatory ... his discovery because he had access to this state-of-the-art technology.” The Hooker telescope was the brainchild ...

The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to ...

In the early 20th century, our understanding of the universe was turned on its head when observations made by Edwin Hubble revealed ... update to the state-of-the-art regarding specific models ...