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 ...

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 ...

Mt. Wilson has been threatened by numerous fires in recent years, such as the Bobcat fire in 2020. The Observatory, where Edwin Hubble spent his career and was visited by Albert Einstein, narrowly ...

The summit of Mount Wilson looms over Pasadena at about 5,715 feet, with the white domes of the observatory buildings and surrounding radio towers visible to drivers along Interstate 210 below.

NASA’s Jet Propulsion Laboratory (JPL) and the historic Mount Wilson Observatory in California appear to be unscathed by the Eaton fire burning through Pasadena and Altadena — for now.

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

began with Hubble photographing a large smudge of light, the Andromeda galaxy, at the Mount Wilson Observatory high above Los Angeles. In short, Edwin Hubble is the man who wiped away the ancient ...

According to historical records, we have one man to thank for this: Edwin Hubble. That's certainly ... Leavitt worked at Harvard College Observatory as a "computer" who would analyze photographic ...

began with Hubble photographing a large smudge of light, the Andromeda galaxy, at the Mount Wilson Observatory high above Los Angeles. In short, Edwin Hubble is the man who wiped away the ancient ...

According to historical records, we have one man to thank for this: Edwin Hubble ... people whose shoulders Hubble stood on the most, though, were Henrietta Swan Leavitt and Harlow Shapley. Leavitt ...