Question

directions: go to schoology and open up the big bang folder. use nasa’s website to learn about the big bang. fill out the missing blanks below after reading the article. question: what is the big bang? the big bang is how astronomers explain the way the universe began. it is the idea that the universe began as just a single singularity then exploded and stretched to grow as large is it is right now—and it is still expanding some more information just two years later, an astronomer named edwin hubble noticed that other galaxies were moving away from us. and that’s not all. the farthest galaxies were moving faster than the ones close to us. this meant that the universe was still expanding just like lemaitre thought. if things were moving apart, it meant that long ago, everything had been closer together. a tiny, hot beginning when the universe began, it was just hot, dense tiny particles mixed with light and energy. it was nothing like what we see now. as everything expanded and took up more space, it cooled down. the tiny particles grouped together. they formed atoms. then those atoms grouped together. over lots of time, atoms came together to form molecules and large structures the first stars created bigger atoms and groups of atoms. that led to more complex structures being born. at the same time, galaxies were crashing and grouping together. as new stars were being born and dying, then things like asteroids, comets, planets, and moons formed! a super long time how long did all of this take? well, we now know that the universe is 13,800,000,000 years old—that’s __________. that is a very long time. big - bang timeline explained

Explanation:

The Big Bang is the leading cosmological model for the origin of the universe. It posits the universe started from a singularity, exploded, and has been expanding since. Edwin Hubble's discovery of galaxies moving away from us at varying speeds supported the expansion theory. Initially, the universe was hot, dense, and filled with tiny particles which grouped to form atoms, then molecules and larger structures like stars, galaxies, and celestial bodies. The universe is approximately 13.8 billion years old.

Answer:

The Big Bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single singularity then exploded and stretched to grow as large as it is right now—and it is still expanding. Just two years later, an astronomer named Edwin Hubble noticed that other galaxies were moving away from us. And that's not all. The farthest galaxies were moving faster than the ones close to us. This meant that the universe was still expanding just like Lemaitre thought. If things were moving apart, it meant that long ago, everything had been closer together. When the universe began, it was just hot, dense, tiny particles mixed with light and energy. It was nothing like what we see now. As everything expanded and took up more space, it cooled down. The tiny particles grouped together. They formed atoms. Then those atoms grouped together. Over lots of time, atoms came together to form molecules and large structures. The first stars created bigger atoms and groups of atoms. That led to more complex structures being born. At the same time, galaxies were crashing and grouping together. As new stars were being born and dying, then things like asteroids, comets, planets, and moons formed! How long did all of this take? Well, we now know that the universe is 13,800,000,000 years old—that's 13.8 billion years.