SkiXF45
Answered

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What started universe (Science)

Sagot :

shrutichand1317

Answer:

Big bang theory

Explanation:

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.

chlee12

Answer:

The Big Bang

Explanation:

The Big Bang was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded. Most astronomers use the Big Bang theory to explain how the universe began.

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