cosmological constant

A baseline energy density of empty space; its sign and behavior influence cosmic expansion.

Articles about cosmological constant

Space
Space as a Sticky Fluid?

Space as a Sticky Fluid?
A late‑2025 arXiv preprint proposes that the vacuum behaves like a viscous, elastic medium with 'spatial phonons'—a phenomenological model that the author says can reconcile tensi…
Physics
Universe May End in 33 Billion Years

Universe May End in 33 Billion Years
A new theoretical analysis using recent dark‑energy measurements argues the cosmos could reverse and collapse in a ‘big crunch’ in roughly 33 billion years; the result depends on …