Universo

The video tutorial explores the universe, describing it as everything that exists, including planets, stars, and galaxies. It explains the structure of the universe, highlighting solar systems and galaxies, and discusses the universe's immense size and continuous expansion. The Big Bang theory is presented as the scientific explanation for the universe's origin, detailing how it expanded from a concentrated mass. The video concludes by prompting viewers to consider how scientists determine the universe's age.

How do astronomers measure the size of the universe?

What changes occurred in the universe after the Big Bang?

Discuss how scientists estimate the age of the universe.