The Karl G. Jansky Very Large Array is a centimeter-wavelength radio astronomy observatory in the southwestern United States built in the 1970s. It lies in central New Mexico on the Plains of San Agus
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One of the 28 radio telescopes, seen here undergoing maintenance in "The Barn"
The Bracewell Radio Sundial on the VLA walking tour, seen from the south. Named for Ronald N. Bracewell, this sundial marks on the ground positions of the shadow of the central sphere (the gnomon) at different times of day and times of year. The shadow on Dec 22, 2017 falls very near the winter solstice line and the 1:00 PM (solar time) mark. The other two lines of markers north of the gnomon are for the equinoxes and the summer solstice. Additional lines of markers south of the gnomon mark positions of "shadows" of the radio sources
The cross rail track structure of the VLA, including an empty antenna mount station on the right (the three concrete piers that the antenna's triangular base mounts to)
The Atacama Large Millimeter/submillimeter Array is an astronomical interferometer of 66 radio telescopes in the Atacama Desert of northern Chile, which observe electromagnetic radiation at millimeter
Very Large Array
…Allen Telescope Array (ATA) Atacama Large Millimeter Array (ALMA) Green Bank Telescope (GBT…
ALMA Antennas on Chajnantor
The first two ALMA antennas linked together as an interferometer
Three ALMA antennas linked together as an interferometer for the first time