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 ...

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

Wilson. Other popular areas, including the Gabrielino Trail and the Mt. Wilson Observatory, were spared. An accounting of the damage of the Eaton fire is still ongoing. Since starting in early ...

Firefighters continue to fight fires in Los Angeles as strong winds returned to the region, spurring on a new fire near San Diego.

President Donald Trump and Vice President JD Vance were sworn into office today amid heightened security measures in ...

As the Santa Ana winds quieted over the weekend, there was more good news regarding containment figures for both the Palisades and Eaton blazes. The former fire is 52% contained (up from 43% yesterday ...

Many travelers recommend visiting Lowell Observatory at night to get the most out of the experience, since that's when the stars are at their highest relief. Visitors also say the presentations ...

The change measured by the Mauna Loa Observatory was likely driven by wildfires and continued burning of fossil fuels, scientists say Sara Hashemi Correspondent The Mauna Loa Observatory in Hawaii ...