THE US SQUARE KILOMETER ARRAY CONSORTIUM
AN OPEN INVITATION TO MEMBERSHIP
Progress in astronomy has always depended on forefront instruments with greater resolving power and sensitivity to reach farther into the universe, and to detect new kinds of objects with unexpected properties. The radio telescopes of the past decades have explored the electromagnetic spectrum far from the traditional optical wavelengths, and have achieved a striking series of discoveries such as pulsars, quasars, gravitational lenses, radio galaxies, and the cosmic microwave background. These have, in turn, proven to be fruitful sources of knowledge about gravitation, nuclear matter, the interstellar medium, high energy phenomena, and have contributed significantly to cosmology.