Reading "Pictures Posing Questions: The next steps in photography could blur reality" (SN: 4/7/07, p. 216), I was struck by the similarity between the image that used a cone-shaped mirror and the images you get from gravitational lensing. As the same data are available in both types of images, it ought to be possible to process gravitationally imaged objects in a way to reconstruct their 3-D shapes under certain circumstances.
The existence of ancient proteins is no surprise. Evidence of remnants of durable, skeleton-associated proteins such as collagen are not uncommon in the fossil record long before Tyrannosaurus rex ("Ancient Extract: T. rex fossil yields recognizable protein," SN: 4/14/07, p. 228). For example, remains of bivalve ligaments are known from the mid-Ordovician, over 40