Abstract:
This work is primarily focused on probing quantum gravity through astrophysical
observations based on the theoretical framework of the Nexus Paradigm of quantum
gravity. The Nexus Paradigm is a theoretical framework that is still in development and
offers a different approach to the problem of quantum theory of gravity. In this framework
gravity, Dark Energy (DE) and Dark Matter (DM) are seen as different manifestations of
the quantum gravity. Astrophysical observations offer a unique test bed for gravitational
theories since at large scales gravity is the dominant interaction. The equations of galactic
and cosmic evolution arising from the Nexus Paradigm are tested against astrophysical
observations which include, galaxy rotation curves, black hole observations by the Event
Horizon Telescope and Advanced Ligo gravitational wave observations.
