Detection of dark energy near the Local Group with the Hubble Space Telescope

TL;DR

This paper reports the first direct detection of dark energy in the local universe near the Milky Way using precise Hubble flow measurements, confirming its local density matches the global value and supporting Einstein's antigravity concept.

Contribution

It provides the first local measurement of dark energy density, demonstrating its presence and consistency with global cosmological observations.

Findings

Local dark energy density matches global value

Dark energy detected through local Hubble flow measurements

Supports Einstein's antigravity as a universal phenomenon

Abstract

We report the detection of dark energy near the Milky Way made with precision observations of the local Hubble flow of expansion. We estimate the local density of dark energy and find that it is near, if not exactly equal to, the global dark energy density. The result is independent of, compatible with, and complementary to the horizon-scale observations in which dark energy was first discovered. Together with the cosmological concordance data, our result forms direct observational evidence for the Einstein antigravity as a universal phenomenon -- in the same sense as the Newtonian universal gravity.