The lowest-priced, brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable).Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag.See details for additional description.
Emitting no radiation or any other kind of information, black holes mark the edge of the universe - both physically and in our scientific understanding. Yet astronomers have found clear evidence for the existence of black holes, employing the same tools and techniques used to explore other celestial objects. This title deals with this topic.
Charles D. Bailyn is the A. Bartlett Giamatti Professor of Astronomy and Physics at Yale University. He is currently serving as dean of faculty at Yale-NUS College in Singapore. He was awarded the 2009 Bruno Rossi Prize from the American Astronomical Society for his work on measuring the masses of black holes.