It's hard to understate the importance of Mount Wilson to the field of astronomy: It is home to the 100-inch Hooker telescope ...

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

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

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

The Eaton Fire burning through the hillsides and mountains above Pasadena is now approaching the Mount Wilson Observatory, with potential implications for both the historic structures and emergency ...

The Eaton Fire made a run for Mount Wilson on Thursday - but the historic observatory and telescope were not damaged, thanks to firefighters.

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

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

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

When the Eaton Fire flared up Jan. 9, flames producing heavy dark smoke climbed to the summit of Mount Wilson, a peak high ... with what was the largest telescope in the world.