Thursday, July 17, 2008

Johannes Vermeer girl with the pearl earring painting

Johannes Vermeer girl with the pearl earring painting
Claude Monet Girls In A Boat painting
The idea for the Deep Space Network was established in 1959 to avoid the need for separate communication networks for each space mission. The network, made of three clusters of giant antennas is now the largest and most sensitive telecommunications system in the world. Each complex is in a remote location surrounded by mountains to cut down on signal interference. A 230-foot antenna is the centerpiece of each. One is outside Madrid, Spain, another in California's Mojave Desert and the third near Canberra, Australia.The antennas are part of a two-way communication system that tracks spacecraft and also sends navigational commands to the probes, such as the Pioneer 10, Galileo and NEAR, the probe that successfully landed on an asteroid earlier this year.

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