The VRO is a project jointly funded by the U.S. National Science Foundation and the U.S. Department of Energy, Office of ...

The 10-year survey is the primary mission of the Vera C. Rubin Observatory, located on a mountaintop at the edge of Chile’s ...

Born June 29, 1868, in Chicago, George Ellery Hale revolutionized American astronomy by, among other things, championing the ...

Vera Rubin fundamentally advanced our knowledge of galactic dynamics, laid the groundwork for dark matter research, and ...

When I was in grade school I was fascinated by the world’s largest telescope: the 200-inch-diameter Hale Reflector on Palomar Mountain near San Diego. What a behemoth! At the time I enjoyed ...

When I was in grade school I was fascinated by the world’s largest telescope: the 200-inch-diameter Hale Reflector on California’s Palomar Mountain. What a behemoth! At the time I enjoyed ...

The Zwicky Transient Facility has reached an incredible milestone, classifying over 10,000 supernovas, cosmic explosions that ...

Humming at their work, astronomers and technicians were busy again at Mt. Palomar Observatory, Calif. The great 200-inch mirror, neglected during the war, was still far from completion. But soon ...

Mount Wilson was the site of the 100-inch Hooker Telescope, the world’s biggest when it was finished in 1917, and the lair of Edwin Hubble, who discovered the expansion of the universe with it.

Hooker Telescope images of Mars, September 11, 1956. “Mount Wilson and Plaomar Observatories Mars views a, b, c taken in red light showing rotation; d) taken in blue light.

Palomar Observatory is one of two on this list that observe in the optical and infrared, rather than the radio. Its 200-inch telescope was a marvel of engineering when Caltech founder Gregory Hale ...