What Is Universe? | Size Of The Universe | The Dr Binocs Show | Peekaboo Kidz

Summary

This educational video script delves into the cosmos, explaining the universe's composition of normal matter, dark matter, and dark energy. It touches on the Big Bang Theory, suggesting the universe's birth 13.7 billion years ago from an infinitesimal hot bubble. The script also discusses the observable universe's size, estimated at 93 billion light years across, and the ongoing expansion, hinting at a potential future 'Big Crunch.' The video ends with a call to action for viewers to contribute their thoughts and engage with the content.

Takeaways

• 🌌 The universe is a mega cosmic system that includes all space, matter, energy, and time.
• 🌟 The universe is believed to be composed of 5% normal matter, 27% dark matter, and 68% dark energy.
• 🔬 Normal matter consists of atoms found in stars, planets, humans, and everything visible to the naked eye.
• 💥 The Big Bang Theory suggests the universe began 13.7 billion years ago from an extremely hot and dense point.
• 🌐 The observable universe is estimated to be around 93 billion light years in diameter.
• 🌠 A team from the University of Oxford estimates the universe to be at least 7 trillion light years across.
• 📈 The universe is continuously expanding, a phenomenon known as inflation, discovered by Edwin Hubble in the 1920s.
• 🔍 There might be a future 'Big Crunch' where the universe stops expanding and starts collapsing in on itself.
• 🌃 The Milky Way contains at least 100 billion stars, and the observable universe contains at least 100 billion galaxies.
• 🌎 As of March 21, 2022, scientists have confirmed the existence of more than 5,000 exoplanets.

Q & A

What is the origin of the word 'universe'?

The word 'universe' is derived from the Old French word 'univers,' which finds its root in the Latin word 'universum,' translating to 'combined into one.'

What is the universe made up of according to the script?

The universe is thought to be made up of three types of substances: 5% normal matter, 27% dark matter, and about 68% dark energy.

What is the composition of normal matter in the universe?

Normal matter consists of atoms that make up stars, meteorites, planets, humans, dogs, and everything else we can see.

How did the universe begin according to the script?

The universe began nearly 13.7 billion years ago with a massive explosion known as the Big Bang, which originated from an extremely hot bubble smaller than a pinhead.

What is the estimated size of the observable universe?

The observable universe is estimated to be around 93 billion light years in diameter.

What is the current understanding of the universe's size according to scientists at the University of Oxford?

Scientists at the University of Oxford estimate that our universe is at least 250 times larger than the observable universe, or at least 7 trillion light years across.

What is the phenomenon known as 'inflation'?

Inflation is the continuous expansion of the universe's size since its birth, causing galaxies to move further apart from each other.

Who discovered that the universe is expanding?

Astronomer Edwin Hubble discovered in the 1920s that the universe was not static but expanding, with galaxies moving further apart.

What is the theorized ultimate fate of the universe?

It is theorized that the universe might eventually stop expanding and start collapsing in on itself in a phenomenon known as the Big Crunch.

How many planets have been confirmed to exist beyond our solar system as of March 21, 2022?

As of March 21, 2022, scientists confirmed that more than 5,000 planets exist beyond our solar system.

What is the Milky Way estimated to contain in terms of stars?

The Milky Way is estimated to contain at least 100 billion stars.