Question

how the universe formed?

Answer 1

Hey mate here is your answer

Soon after the Big Bang, primordial protons and neutrons formed from the quark–gluon plasma of the early Universe as it cooled below two trillion degrees. A few minutes later, in a process known as Big Bang nucleosynthesis, nuclei formed from the primordial protons and neutrons.
Age (within Lambda-CDM model):13.799 ± 0.021 billion years
Main contents:Ordinary (baryonic) matter (4.9%); Dark matter (26.8%); Dark energy (68.3%)
Mass (ordinary matter):At least 10⁵³ kg

Hope this answer will help you!!
MARK MY ANSWER AS BRAINLIEST...

Answer 2

Universe is formed with many things specially it contains a lot of asteroids