  When completed, the gravitational wave detectors now proposed or under
construction will provide us with a perspective on the Universe fundamentally
different from any we have come to know. With this new perspective comes the
hope that new insights and understandings of Nature will emerge. The proposed
acoustic detectors, with spherical geometries and operating at millikelvin
temperatures, are particularly well-suited to study gravitational radiation in
the 1--3 KHz band. In this brief report I review some sources of particular
interest for these detectors.
