AST111: Solar System Astronomy

  AST112: Stars, Galaxies, and Cosmology

It is only because we perceive patterns and regularities in the natural world that science doesn't clog up as data accumulate.  On the contrary, as we come to see how previously disconnected facts hang together, and subsume data into more and more general laws, we need to remember fewer independent basic facts, from which all the rest can be deduced.  We need not record the fall of every apple.

Martin Rees, Before the Beginning

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