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

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

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

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

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

While the literature clearly shows that the intrinsic seeing on Mount Wilson is the best in the continental United ... 27, The Construction of Large Telescopes (Crawford: Academic Press), 165 Fried, D ...

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

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 ...

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

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

The Eaton Fire that started in the foothills northeast of Los Angeles flared up Thursday morning near Mount Wilson.

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.