ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

All You Need to Know About Black Holes

Updated on May 24, 2019


The black hole is an area in space where gravity is very high and light is not allowed to pass through it, so it is invisible and can’t be found through the use of a space telescope and special devices. The English geologist John Michel and the French astronomer Pierre Simon Leblas developed the idea of black holes in the 18th century and developed the theory that if the celestial body was sufficiently large and sufficiently dense, it would produce a high attraction that nothing could escape.

The Emergence of Black Holes

When the giant stars explode in the final stages of their lives, these explosions are called supernovae, which cause most parts of the star to be scattered in empty space. These explosions leave cold residues where there is no nuclear fusion, unlike the smaller stars that occur. Where these processes help to produce energy and external pressure constant, and balanced by the forces of clouds of the internal gravity resulting from the mass of the star itself, the absence of these forces in the cold remains of the big star to collapse the star itself, and shrink the black hole emerging in high, zero and infinite intensity. Nobody can escape from its enormous attractiveness even light so that the light of the star itself is confined to its orbit, so this dark star is known as the black hole.

The black holes pull the planets, light, or any other cosmic object in the event that it passes near them. These objects, then reach the point of no return, meaning that they have entered the horizon state, which is impossible for this material to escape from the black hole because that requires that the speed of the movement of this body faster than the speed of light to escape it.


Types of Black Holes

There are three main types of black holes, where the type of star is determined according to the mass and size:

  • The small black hole: known as the primitive black hole, or basic, scientists believe that this type of holes is the size of the atom, but the mass is enormous.
  • Black hole Medium size: This hole is called the star black hole, which is the most common, which can reach the mass of about 20 times greater than the mass of the sun and can be placed inside a ball with a diameter of 16 kilometers, and there are dozens of black holes starry within the galaxy Milky Way.
  • Large black holes, called black hole's mass, and the mass of these black holes about one million suns, and can be placed in a ball of diameter is almost equal to the diameter of the solar system, scientific evidence indicates that each large galaxy contains a huge black hole mass Its center, called the large black hole in the center of the Milky Way galaxy, whose mass is equal to the mass of 4 million suns, can be placed in a ball diameter approximately equal to the diameter of the sun.


Effect of Black Hole

The black holes, mysterious objects of curiosity, where scientists study the impact of the elements of the universe, and lay hypotheses for what happens to the objects if exposed to attractiveness, and can explain the impact of the black hole as follows:

  • The effect on nearby objects: Objects close to the black hole fall in them. Black holes do not absorb objects, but they fall into them. Scientists have long believed that the gravitational attraction of black holes may make objects approaching them to expand and lengthen dramatically, but the fact that objects approaching the black hole fall in and then to burn, but if the approached star of the black hole, it tears.
  • Its impact on the planet: The black holes are very far from the planet, the nearest hole to us away from the Earth 1600 light years, although the speed of light equivalent to 300 thousand kilometers per second, so the earth will not be affected by black holes, and may put some assumption of the transformation of the sun To a black hole because it is a star close to the earth, and put the earth at risk of destruction, but the sun is a small star cannot turn into a black hole, and if the transformation will be a small mass and the strength of attractiveness will be equivalent to the power of attracting the sun to the Earth, so the land will not fall in the attractiveness, Circling around it like the two corners of the earth around the sun.


Physical Properties

The simplest static black holes are black holes but do not carry an electrical charge nor an angular momentum. These black holes are often referred to as Schwarzschild's black holes, in recognition of Carl Schwarzschild, who discovered this mathematical solution in 1916. According to Berkhof's theory, this is the only symmetrical solution of spherical symmetry. This means that there is no significant difference between the gravitational field of this black hole and any other sphere with the same mass. Thus, the common idea of ​​"absorption of the black hole for everything" is only true within the circumference of the black hole near its horizon; far away, the field of external gravity corresponds to the field of any other object, having the same mass.

Hawking Radiation

The theoretical physicist Stephen Hawking applied theories of thermodynamics, general relativity, quantum mechanics, and concluded that the black hole could produce rays. It is assumed that double production at the event horizon of the black hole results in radiation called Hawking radiation. He also concluded that the mass of the black hole evaporates over time, and the life of the black hole was estimated at 1067 years.


Do you think black holes exist?

See results

Full HD Video of Space

© 2019 Ameen Selegi


This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

Show Details
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
ClickscoThis is a data management platform studying reader behavior (Privacy Policy)