How did the universe began?
Answers
Answer:
Fundamental mysteries
According to the standard Big Bang model, the universe was born during a period of inflation that began about 13.8 billion years ago. Like a rapidly expanding balloon, it swelled from a size smaller than an electron to nearly its current size within a tiny fraction of a second.
Explanation:
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Answer:
1/-When the universe began, it was just hot, tiny particles mixed with light and energy. It was nothing like what we see now.
2/-As everything expanded and took up more space, it cooled down.
3/-The tiny particles grouped together. They formed atoms.
4/-Then those atoms grouped together. Over lots of time, atoms came together to form stars and galaxies
5/-The first stars created bigger atoms and groups of atoms called molecules. That led to more stars being born.
6/-At the same time, galaxies were crashing and grouping together.
7/- As new stars were being born and dying, then things like asteroids, comets, planets, and black holes formed!
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