What Is Universe? | Size Of The Universe | The Dr Binocs Show | Peekaboo Kidz
Peekaboo Kidz・2 minutes read
The universe, originating from the Big Bang, consists of normal matter, dark matter, and dark energy, expanding continuously for nearly 13.7 billion years. Astronomer Edwin Hubble discovered this expansion in the 1920s, with the possibility of a future collapse known as the Big Crunch, with additional fascinating facts including the Milky Way having over 100 billion stars and the observable universe containing at least 100 billion galaxies, with over 5,000 confirmed planets beyond our solar system as of March 21, 2022.
Insights
- The universe is a vast system formed after the Big Bang, comprising normal matter, dark matter, and dark energy, expanding continuously since 13.7 billion years ago.
- The universe, expanding since its inception, contains billions of galaxies, with the Milky Way alone hosting over 100 billion stars, showcasing the immense scale and complexity of cosmic structures beyond our solar system.
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Recent questions
What substances make up the universe?
Matter, dark matter, dark energy.
How old is the universe?
13.7 billion years.
What is the size of the observable universe?
93 billion light years.
Who discovered the expansion of the universe?
Edwin Hubble.
How many galaxies are in the observable universe?
At least 100 billion.
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Summary
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Vast Universe: Origins, Expansion, and Discoveries
- The universe is a mega cosmic system consisting of space, matter, energy, time, and living beings, with three main substances: normal matter, dark matter, and dark energy, believed to have originated from the Big Bang nearly 13.7 billion years ago, leading to the continuous expansion of the universe.
- The observable universe is estimated to be around 93 billion light years in diameter, but potentially much larger, with the universe continuously expanding since its birth, as discovered by astronomer Edwin Hubble in the 1920s, with the possibility of a future collapse known as the Big Crunch. Additional fascinating facts include the Milky Way containing over 100 billion stars, the observable universe having at least 100 billion galaxies, and the confirmation of over 5,000 planets beyond our solar system as of March 21, 2022.
