Question

what is the universe mede to now ?​

Answer 1

Composition. The universe is composed almost completely of dark energy, dark matter, and ordinary matter. Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the universe) and antimatter.

Main contents: Ordinary (baryonic) matter (4.9%); Dark matter (26.8%); Dark energy

Mass (ordinary matter): At least 1053 kg

Diameter: Unknown. Diameter of the observable universe: 8.8×1026 m (28.5 Gpc or

Average temperature: 2.72548 K (-270.4 °C or -454.8 °F)