The Very Large Array
Monday, 26th January 2009 by Ian Brown
The scale of the VLA operation is quite remarkable- each dish is 25m across and weighs 209 tonnes. They travel on train tracks which make up each of the three 21km arms of the array. A specially designed locomotive maneuvers the antennas into different configurations for specific observations.
The 27 antennas effectively provide the imaging capability of an antenna 36km wide, with the sensitivity of a dish 130m across. This allows the study of the sun, planets, black holes, pulsars, quasars and myriad other astronomical objects.
Construction was started in 1973 and completed – $78.5million later – in 1980. Currently, new hardware is being installed to improve the capabilites of the observatory – making it the Expanded Very Large Array, and funding is sought to add further dishes across the state to expand the system even further.
Google Sightseeing has covered all sorts of telescopes in the past, some of which have received great image updates since they were first posted.
Thanks to the many readers who suggested this one: james v, Stilt, Tim, Matt, Jonathan Hoppe, Benjamin, Benjamin, Doug Hershberger, Jarrod Lombardo, Leandro Garcia, Glenn, Trevor, Derek and Yablo.