Do You Know | Black Holes

Audio Episode

What is this episode about?

Learn about black holes, how strong they are, where they come from and how we study them in this new Do You Know episode from English Plus Podcast.

Forever Free Is A Donation Away

A Very Short Introduction to Autism

BLACK HOLES

Black holes are some of the strangest things in space. A black hole sucks in anything that gets near it. Nothing can escape from a black hole—not even light.

BLACK HOLES ARE STRONG

Nothing escapes from a black hole because its gravity is so strong. Gravity is a force that pulls one thing to another. Gravity is the force that holds you down on Earth. When you jump up, Earth’s gravity pulls you right back down. Earth’s gravity also makes the Moon orbit Earth.

The more matter that is packed in a star, planet, moon, or other object, the stronger is its gravity. Gravity makes an object with more matter pull an object with less matter toward it. The Sun has a lot more matter than Earth. The Sun’s gravity pulls on Earth. It makes Earth orbit the Sun.

Matter is packed very tightly in some things and loosely in others. The matter that makes up an iron ball is packed much tighter than the matter that makes up a bag of feathers. A scientist would say that an iron ball is much denser than a bag of feathers.

A black hole is denser than anything you could imagine. A black hole could have a million times more stuff than our Sun. All of this stuff would be packed into an area smaller than a city. The force of gravity from so much stuff packed into such a small area is awesome.

WHERE DO BLACK HOLES COME FROM?

Astronomers and physicists think black holes come from dying stars. A dying star burns out and stops shining. All the stuff that makes up the star starts falling in on itself. The star gets denser and denser. If the star is big enough and has enough matter, it could get dense enough to become a black hole.

STUDYING BLACK HOLES

No one has really seen a black hole. You cannot see black holes because they do not give off any kind of light. Physicists used math to predict that black holes exist.

Astronomers look for signs of black holes. Astronomers study powerful rays coming from stars in deep space. The stars seem to be orbiting black holes. Astronomers think that black holes are sucking gas from the stars, and this makes the stars give off X rays.

Galaxies are enormous groups of stars. Astronomers think that most galaxies have huge black holes at their centers. The Hubble Space Telescope took pictures of a disk of hot gases at the center of our own Milky Way Galaxy. Astronomers think this disk is going around an enormous black hole right in the center of our galaxy.

<a href="https://englishpluspodcast.com/author/dannyballanowner/" target="_self">Danny Ballan</a>

Danny Ballan

Author

Danny is a podcaster, teacher, and writer. He worked in educational technology for over a decade. He creates daily podcasts, online courses, educational videos, educational games, and he also writes poetry, novels and music.

You may also Like

A Short Introduction to Alexander the Great

A Short Introduction to Alexander the Great

He was a king, a commander, and a conqueror. Alexander the Great was so powerful some people called him a god. He was one of the greatest generals in history, and he built a vast empire that extended from the Mediterranean Sea to India.

read more

0 Comments

Submit a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Recent Posts

Navigating the Waves of Change: A Global Journey Through the Evolution of Education Systems

Navigating the Waves of Change: A Global Journey Through the Evolution of Education Systems

Join us on English Plus Podcast as we embark on a captivating journey through the evolution of education systems around the world. Hosted by Danny, this episode delves into the historical milestones, cultural influences, and innovative reforms that have shaped education globally. Discover how learning methods have transformed over time and what this means for learners today.

read more

Word Power | Halcyon

Embark on a journey to uncover the serene beauty of ‘Halcyon’ days! In this video, we dive into the meaning of ‘Halcyon’ and explore how this concept can bring peace and tranquility into our hectic lives. Through engaging stories, practical applications, and a sprinkle of humor, we’ll show you how to find your own halcyon moments amidst chaos. Tune in for a heartwarming exploration of serenity and mindfulness.

read more

Categories

Follow Us

Pin It on Pinterest