  Recently, scattering amplitudes in four-dimensional Minkowski spacetime have
been interpreted as conformal correlation functions on the two-dimensional
celestial sphere, the so-called celestial amplitudes. In this note we consider
tree-level scattering amplitudes in $\mathcal{N}=4$ super Yang-Mills theory and
present a Grassmannian formulation of their celestial counterparts. This result
paves the way towards a geometric picture for celestial superamplitudes, in the
spirit of positive geometries.
