the universe explanations
Answers
Answer:
The universe (Latin: universus) is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. ... At the largest scale, galaxies are distributed uniformly and the same in all directions, meaning that the universe has neither an edge nor a center.
Diameter: Unknown. Diameter of the observable universe: 8.8×1026 m (28.5 Gpc or ...
Main contents: Ordinary (baryonic) matter (4.9%); Dark matter (26.8%); Dark energy ...
Mass (ordinary matter): At least 1053 kg
Step-by-step explanation:
The Universe is everything we can touch, feel, sense, measure or detect. It includes living things, planets, stars, galaxies, dust clouds, light, and even time. Before the birth of the Universe, time, space and matter did not exist.
The Universe contains billions of galaxies, each containing millions or billions of stars. The space between the stars and galaxies is largely empty. However, even places far from stars and planets contain scattered particles of dust or a few hydrogen atoms per cubic centimeter. Space is also filled with radiation (e.g. light and heat), magnetic fields and high energy particles (e.g. cosmic rays).