12 GHz of bandwidth to be correlated for each sideband of two receivers on all baselines, allowing a 48 GHz total sky frequency coverage. SWARM can also operate as a phased array summer, making the SMA appear to be a single antenna for VLBI operations. Science with the SMA The SMA is a multi-purpose instrument which can be used to observe diverse celestial phenomena. The SMA excels at observations of dust and gas with temperatures only a few tens of kelvins above absolute zero. Objects with such temperatures typically emit the bulk of their radiation at wavelengths between a few hundred micrometers and a few millimeters, which is the wavelength range in which the SMA can observe. Commonly observed classes of objects include star-forming molecular clouds in our own and other galaxies, highly redshifted galaxies, evolved stars, and the Galactic Center. Occasionally, bodies in the Solar System, such as planets, asteroids, comets and moons, are observed. The SMA has been used to discover that Pluto is cooler than expected. It was the first radio telescope to resolve Pluto and Charon as separate objects. The SMA is a part of the Event Horizon Telescope, which observes nearby supermassive black holes with an angular resolution comparable to the size of the object's event horizon and which produced the first image of a black hole. Gallery See also Atacama Large Millimeter Array, currently operating in Chile References External links Submillimeter Array website Robert Pinsky poem about the Submillimeter Array Smithsonian Astrophysical Observatory website Academia Sinica Institute of Astronomy and Astrophysics website Radio telescopes Submillimetre telescopes Interferometric telescopes Astronomical observatories in Hawaii Buildings and structures in Hawaii County, Hawaii