Searching for departures from the standard model of cosmology

We present a detailed examination into the viability of our current theory of gravity (General Relativity) on Cosmological length scales. In particular, we study how the local motion of galaxies can be used to constrain gravitational physics using data from the 6-degree Field Galaxy Redshift Survey. In addition, we present new measurements of both scale- and time-dependent deviations from the standard gravitational field equations using a range of the latest cosmological measurements.