The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

Budget update shows $22 million operating shortfall from July through October 2024, with medical group posting similar ...

has given the 76-year-old telescope at the California Institute of Technology’s Palomar Observatory an unmatched ability to capture fainter objects and reveal unprecedented details of the universe.

The change measured by the Mauna Loa Observatory was likely driven by wildfires and continued burning of fossil fuels, ...

ESO estimates the complex will leak as much light pollution as a city with a population of about 20,000. Parts of the ...

Palomar 5 stands out because of its loose, spread-out formation and long tidal stream—a vast river of stars trailing behind it. These stellar streams were hard to detect in the past, but with the help ...

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The Eaton Fire made a run for Mount Wilson on Thursday afternoon. But the Mount Wilson Observatory and the telescope were not damaged, thanks to firefighters' efforts, said L.A. County Fire Chief ...