Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the universe hangs in the balance. The force is enormous — it makes up nearly 70 ...

Cosmic energy density ρ 1/4 vs redshift, z. Standard Model radiation (red), Δ field with Ω CDM =0.25 (blue), cosmological constant dark energy with Ω DE =0.7 (black dashed), and baryons with ...

Dark energy is one of the most mysterious features of our universe – we don’t know what it is, but it controls how the universe is expanding, as well as its ultimate fate. Now, a study of ...