A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

Circa 1945: Astronomer Dr. Edwin Powell Hubble sitting in a chair at a desk reading a journal. A staff member at Mt. Wilson ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

Edwin Powell Hubble is renowned for determining ... In 1919 he began to work at Mt. Wilson Observatory in California, where he would work for the rest of his life. He was researching nebulae ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...

Authorities could not say what or how many structures are threatened by the spread, such as communication towers and the Mount Wilson observatory.

The blaze threatened the observatory and communications infrastructure at the peak. Later, an observatory official said it ...

But 100 years ago, astronomer Edwin P. Hubble (1889-1953), working at the Mount Wilson Observatory in California, made a stunning discovery: He calculated that a spiral nebula called Andromeda was ...

The Mount Wilson Observatory and telescope were not damaged from the Eaton Fire, thanks to firefighters, said L.A. County Fire Chief Anthony Marrone.