Image of Sun and Venus during transit of 2012 as seen by the Solar Tower atop Mount Wilson in Southern California. The angular diameter of Venus is larger than those of any of the sunspots located ...

The southern-facing HPWREN live webcam on the Mount Wilson Observatory took this image at 7:51 p.m. PDT on Sept. 17 (0251 GMT on Sept. 18), and it shows activity associated with the Bobcat Fire.

Contacts: Mike Simmons President, Astronomers Without Borders [email protected] +1 818 597 0223 Dave Jurasevich Superintendent, Mount Wilson Observatory [email protected] +1 ...

The Hooker telescope on Mt. Wilson. At 100 inches, it was the largest telescope in the world from 1917 to 1949 and was used by astronomers to measure the expansion of the universe.

Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library. People can rent the historic telescopes at LA’s Mt. Wilson Observatory for one night — ...

Mount Wilson Observatory 's summer season is nearly in full swing, with concerts set to take place in the 100-inch telescope dome, astronomy lectures, and nights open to public viewing.