Crawford has assumed a working knowledge of spherical astronomy. He develops his subject concisely, and leaves the more difficult subjects of perturbations and definitive orbits for later and more ...

China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST) under maintenance in southwest China's Guizhou Province.

An aerial photo of the Five-hundred-meter Aperture Spherical Radio Telescope (FAST ... his understanding of astronomy was relatively limited before joining the team. Through his experience ...