  We propose a connection between the visualisation of cosmic matter and
structure formation in the Cartesian tradition and that used by contemporary
astrophysics. More precisely, we identify cosmological simulations of large
scale structure in the Universe with the system of vortices in Descartes
physics. This connection operates at different levels of the images: their
representational purpose; the theoretical systems behind their use; and,
finally, their function and materiality as visual productions. A skilled use of
image analysis is necessary to stress the continuities and peculiarities
between different epochs and disciplines.
