Astronomy Picture of the Day . ... 13.02.2011 . ... Astronomers with the IceCube Neutrino Observatory lowered into each vertical lake a long string knotted with basketball-sized light detectors. ... Experimental goals of the newer IceCube include a search for cosmic sources of neutrinos, a search for neutrinos coincident with nearby supernova and distant gamma-ray bursts , and, if lucky, a probe of exotic physical concepts such as unseen spatial dimensions and faster-than-light travel . ...