To celebrate the 100-year Edwin Hubble discovery that Andromeda was a galaxy outside our own, astronomers release the most ...

But the Mount Wilson Observatory and the telescope were not damaged, thanks to firefighters' efforts, said L.A. County Fire Chief Anthony Marrone. "No buildings or infrastructure have been damaged ...

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

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

The Mount Wilson Observatory was once home to the world’s largest telescope, and more than a century ago, on Jan. 1, 1925, astronomer Edwin Hubble made one of his most important discoveries at ...

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

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.