Question

what is meant by universe?how formed?​

Answer 1

Answer:

Our universe began with an explosion of space itself - the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies.

Answer 2

Explanation:

• The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. According to estimation of this theory, space and time emerged together 13.799±0.021 billion years ago, and the universe has been expanding ever

• Our universe began with an explosion of space itself - the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies.