Respuesta :

jmgorman9

Answer: Mostly hydrogen. It all started with a Big Bang, about 13.8 billion years ago, when ultra-hot and densely packed matter suddenly and rapidly expanded in all directions at once.

Explanation:Unseen particles. Something else was created during the Big Bang
The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.

Otras preguntas