SKA

One of the great technological feats to be constructed in the 21st century is the Square Kilometer Array. Imagine thousands of small antennas spread out over 3,000 kilometers with a total collecting area of a million square feet. This radio telescope will be able to spot active galactic nuclei to within a billion years of the universe's formation. The leading contenders of where the site will be housed are South Africa and Australia. Construction should begin in 2010 and SKA will be fully operational in 2020. A long wait, but radio astronomers have some very exciting years ahead of them.