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A supernova is the explosive death of a star. This Image Gallery exhibit shows optical, x-ray, and radio images of five famous supernova remnants of varying ages, from the extremely young (SN 1987A, at just over 15 years old) to the very old (Vela…

In 2006, evolutionary biologists at the American Museum of Natural History conducted a phylogenetic analysis of spiny-rayed teleost fishes. They discovered that at least a thousand more venomous fish species inhabit worldwide aqautic ecosystems—a…

Wilbur Wright asks for help from the respected engineer, Octave Chanute, in May of 1900. View all five pages of this original handwritten letter, which provides remarkable insight into the approach the Wright Brothers were planning to take in…