Matters of Gravity: Dark Matter and the Cosmological Constant

TL;DR

This paper explores solutions to longstanding issues in cosmology by proposing a time-varying gravitational constant to address dark matter detection problems and using average universe density to explain the cosmological constant's value.

Contribution

It introduces a novel approach where a varying gravitational constant and universe density considerations resolve two major cosmological problems.

Findings

A varying gravitational constant could explain the non-detection of dark matter.

Average universe density can account for the observed value of the cosmological constant.

Proposes a unified framework for addressing dark matter and dark energy issues.

Abstract

We consider two problems that have vexed physicists for several decades -- dark matter and the cosmological constant. The problem has been that the former has not been detected while the latter gives a far higher value than detected by observation. We argue that a time varying gravitational constant obviates the former problem, while the latter problem can be circumvented by considering the average density of the universe.