  More often than not a lunch time conversation will veer off into bizarre and
uncharted territories. In rare instances these frontiers of conversation can
lead to deep insights about the Universe we inhabit. This paper details the
fruits of one such conversation. In this paper we will answer the question: How
many cows do you need to form a planetoid entirely comprised of cows, which
will support a methane atmoosphere produced by the planetary herd? We will not
only present the necessary assumptions and theory underpinning the
cow-culations, but also present a thorough (and rather robust) discussion of
the viability of, and implications for accomplishing, such a feat.
