| The Observatory at Stanford in the San Francisco Bay Area consists of five 18 metre dishes operating as a high-resolution X-band interferometer for extragalactic observational work. |
The Observatory (historically known as "Heliopolis"), first achieved the angular resolution of the human eye (one arcminute). It was also here that the first discovery was made revealing the direction of motion of our solar system relative to the cosmic background.
Its future operation is currently uncertain. There are plans to demolish the historical Antenna.