aNotation: 64 × 12 m denotes 64 antennas with 12-m diameters.
bThe wavelength is scaled to the shortest operating wavelength; the number in front of the parenthesis is the angular resolution at that wavelength in arcseconds.
cUniversity or private facility in the United States.
experiments await the results from MAP (assuming it is successful) and the ongoing suite of ground-based and balloon projects.
THE SEARCH FOR EXTRATERRESTRIAL INTELLIGENCE
Are we alone in the universe? Finding evidence for intelligence elsewhere would have a profound effect on humanity. Searching for evidence for extraterrestrial life of any form is technically very demanding, but, as indicated in the discussion of TPF above, there is a clear approach for doing so. The search for extraterrestrial intelligence is far more speculative because researchers do not know what to search for. Radio astronomers have taken the lead in addressing this challenging Netherlands, Canada