Black holes are one of the strangest things ever discovered in space. Unlike stars, black holes do not emit or reflect any light, so scientists can only detect them by their surroundings, which mainly comprise dust and gasses. Black holes are exceptionally dense and have a strong gravitational attraction. If you’ve always been fascinated by black holes, here are some unique facts about what they are and what their purpose is in the universe.

1. The Biggest Black Hole is 66 Billion Times the Sun’s Mass

The biggest black hole is TON 618. According to NASA, its size is about 66 billion times the sun’s mass. This is interesting, considering the sun is one of the biggest stars; the size of the TON 618 black hole is beyond human comprehension. The lightest black hole isn’t that light, either – it is approximately 3.8 times the sun’s mass.

2. A Sound of 1,100 Decibels Can Create a Black Hole Big Enough To Wipe out The Universe

If humans were capable of creating a sound measuring 1,100 decibels, it would be loud enough for them to make a black hole that would suck this universe out of existence. To give you a perspective of how loud 1,100 decibels are, the sound of a rocket launch is only 180.

So, to create such a sound, humans would have to explore 1*10^85 atomic bombs. In layman’s, that is 1 with 85 zeros on the right, meaning the universe isn’t endangered yet.

3. Smaller Black Holes are More Dangerous Than Bigger Ones

According to scientists, smaller black holes are more dangerous than the bigger ones because the latter experience more tidal forces. Therefore, if pulled into a smaller black hole, you would experience spaghettification, where you’d be stretched into a thin substance resembling spaghetti. This is unlikely to happen in a bigger black hole.

4. 1 Minute Near a Black Hole Translates to 700 Years on Earth

One of the most exciting aspects of interacting with a black hole is that once you get near it, you’ll experience time dilation. A minute spent near the black hole equals almost 700 years on Earth. Time near a black hole passes very slowly compared to the gravitational field on Earth.

5. Planets Can Form Around Black Holes

As mentioned earlier, black holes are surrounded by gas and dust. However, did you know that these two materials create the perfect breeding ground for planets? Scientists from the Kagoshima University in Japan claim that planets can form around black holes, creating new flora and fauna.

6. Interstellar Film Displayed the Most Accurate Representation of Black Holes

Many films have tried portraying the essence of black holes and what they are, but none has done it better than Interstellar. Scientists agree that the Christopher Nolan-directed film is the only one with a high accuracy regarding the phenomenon. Apparently, Christopher Nolan hired 30 experts to develop Gargantua, the black hole. It took the computers that the specialists used hundreds of hours to get the graphics right.

7. Astronomers Found the Largest Water Reservoir Surrounding a Black Hole

In 2011, a group of astronomers found what they thought was the largest water reservoir surrounding a black hole. The water body contains a volume of 140 trillion times the amount found on Earth, with Quasar being the black hole referred to. NASA considered this an indication that water is an existing resource in the cosmos and not just on Earth.

8. Black Holes are the Reason Why We Have Wi-Fi

During the 1990s, John O’Sullivan embarked on a journey to detect radio signals from mini black holes due to Hawking’s Theory. To achieve this, he created a method to analyze signals using a fast Fourier Transform to eliminate noises from disturbed particles. This is the same phenomenon that gave birth to the Wi-Fi systems we have today.

9. There are White Holes

A theory says there are white holes in the universe that are closely related to black holes. The only difference is that white holes do not allow anything inside like their black counterparts. They resemble in every other aspect, including being surrounded by dust and gasses.

10. The Closest Black Hole is 1500 Light Years Away

Discovered in September 2022, the closest black hole, GaiaBH1, is located 1,500 light years away. However, there have also been allegations that black holes are much closer to us and are in the Hyades Cluster, which is 150 lightyears away.

11. Many Movies Have Been Based on Black Holes

While Interstellar is the most prominent movie featuring black holes, it’s not the only one. Other examples include Star Trek, High Life, Event Horizon, and Mega Mind among others. Even though most of these movies are based on fiction, they offer a great deal of information about this space phenomenon.

12. Black Holes Can’t Be Seen

Light can’t pass through a black hole, so they are invisible. However, this doesn’t mean scientists can’t detect them; black holes can be detected thanks to the difference in gravitational pull and the surrounding matter.

13. There is a Black Hole in the Milky Way

The Milky Way is the galaxy that hosts the planets, stars, and even a black hole known as the Sagittarius A. It is about four million times the size of the sun. In 2022, NASA scientists captured an image of Sagittarius A and shared it with the public.

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Last Update: March 14, 2024