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

Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside our galaxy.

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

When the Eaton Fire flared up Jan. 9, flames climbed to the summit of Mount Wilson northeast of LA. What happened next was a ...

Shapley argued the opposite. Hubble enters the fray Edwin Hubble joined the Mount Wilson Observatory team in California in ...

Edwin Hubble's discovery of the expanding universe transformed cosmology, revealing countless galaxies and laying the ...

The long-closed, 1920s-era observatory in Lake Angelus is important to astronomy buffs. But its private ownership has ...

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

The key NASA center remains under a mandatory evacuation order, but officials say both it and Mount Wilson are protected for ...

Will Rogers’ ranch house and other historic buildings located on the 186-acre Will Rogers State Park were destroyed by the ...

The canyon is in the steep face of Mt. Wilson. John Muir himself, a frequent visitor to Pasadena, wrote in one of his books — I found it in the Eliot library –—about hiking the face of ...

a 5,710-foot peak in the San Gabriel Mountains – and the Mount Wilson Observatory, an astronomical observatory that houses some very important telescopes and was conceived and founded in 1904 by ...