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Black Holes

Black holes are regions in space created by the death of stars. Their gravitational field is so strong that even light cannot escape from it.

500 Questions

What would happen if there were enough black holes to suck up the universe?

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Asked by Wiki User

If there were enough black holes to absorb matter from the entire universe, it would lead to the eventual heat death of the universe, where all energy is evenly distributed and no work can be performed. This would result in a cold, dark, and empty universe with no possibility of new structures or life forming.

Can the Keck telescopes be used to see black holes?

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Asked by Wiki User

Yes, the Keck telescopes can be used to study black holes indirectly by observing their effects on surrounding matter such as stars or gas. Directly observing a black hole is challenging due to their nature of not emitting visible light, but the telescopes can study the environment around black holes to infer their presence and properties.

What are the steps as to creating a black hole?

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Asked by Wiki User

Creating a black hole naturally requires a massive star to collapse at the end of its life cycle. This collapse causes the star's core to shrink to a point of infinite density, forming a singularity surrounded by an event horizon. This event horizon marks the boundary beyond which not even light can escape, creating a black hole.

Can the mass of a black hole ever decrease?

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Asked by Wiki User

Yes, the mass of a black hole can decrease through processes like Hawking radiation, which causes small amounts of mass to be lost over time. Additionally, a black hole can lose mass through the accretion of nearby matter or through gravitational wave emission during mergers with other black holes.

Do black holes and neutron stars have any connection?

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Asked by Wiki User

Yes, both black holes and neutron stars are remnants of the death of massive stars. Neutron stars form when the core of a massive star collapses but does not produce a black hole. Black holes are formed when the core of a massive star collapses beyond the neutron star stage.

Why do astronomers hypothesize that a massive black hole lies at the center of M 87?

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Asked by Wiki User

Astronomers hypothesize that a massive black hole lies at the center of M87 because of the high speeds of stars orbiting the center, which indicate a very massive object. Observations also show a jet of energetic particles emanating from the center, which is commonly associated with supermassive black holes. Additionally, the size of the dark central region in M87 matches what is expected for a black hole event horizon.

How often does black saturday occur?

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Asked by Wiki User

It happens once a year on December 18th. It is most popular in United States because it's such a large place. Los Angeles; San Francisco; San Diego and the San Fernando Valley is always the busiest in California

What do scientists hope to learn about black holes?

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Asked by Wiki User

Scientists hope to learn more about the properties, formation, and behavior of black holes, as well as their interaction with surrounding matter and potential influence on the larger universe. Studying black holes could also provide insights into fundamental physics theories, such as general relativity and quantum mechanics. Additionally, understanding black holes better could shed light on cosmic phenomena like gravitational waves and dark matter.

What happens to light going in a black hole?

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Asked by AkshayKarna

Light that enters a black hole cannot escape due to the immense gravitational pull, resulting in the light being trapped within the event horizon and unable to be observed from the outside. It is thought to contribute to increasing the black hole's mass.

Why can gamma rays exit a black hole although light can't?

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Asked by Wiki User

Gamma rays are electromagnetic radiation that can escape from a black hole because of their high energy and short wavelength. They can be emitted from the inner regions of a black hole before being absorbed and re-emitted by surrounding matter. Light, on the other hand, gets trapped inside the event horizon of a black hole due to its lower energy and longer wavelength.

What is it called when a black hole explodes?

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Asked by Wiki User

When a black hole explodes, it is referred to as a "black hole supernova" or a "black hole hypernova." This rare event occurs when a black hole absorbs too much matter and energy, leading to a powerful explosion.

What do you call fabric with small dot holes not eyelet..?

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Asked by Wiki User

The fabric you are referring to is likely a swiss dot fabric. It features small raised dots that are woven into the fabric rather than being cut out like in eyelet fabric.

What is the biggest black hole in the entire universe?

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Asked by Dragongirl0905

The biggest black hole discovered so far is called TON 618, located about 10.37 billion light-years away in the Canes Venatici constellation. It has a mass estimated to be around 66 billion times that of our Sun.

Is planet Earth going to be sucked into a black hole?

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Asked by Wiki User

Our planet Earth will probably not spontaneously turn into a black hole under its own gravity since it lacks sufficient mass - it would need several solar masses to so collapse, and the Earth is just a tiny fraction of the mass of the Sun.

What is the effect of time inside a black hole?

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Asked by Wiki User

Time inside a black hole is distorted due to the extreme gravitational forces present. As an observer gets closer to the singularity, time dilation becomes more severe, with time appearing to slow down from the perspective of an external observer. Ultimately, time comes to a halt at the singularity itself.

Can a planet orbit a black hole and why?

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Asked by Wiki User

Yes, a planet can orbit a black hole. As long as the planet is within the black hole's gravitational pull but not inside its event horizon, it can orbit the black hole just like any other massive object orbiting around it due to gravity. The planet would need to maintain a stable orbit to avoid being pulled into the black hole.

Could black holes be predicted?

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Asked by Wiki User

Black holes can be indirectly predicted based on the behavior of surrounding matter and radiation, such as the rapid increase in X-ray emissions from a certain region of space. However, direct observation is challenging due to the fact that black holes themselves do not emit light.

Which of these black holes exerts the weakest tidal forces on an object near its event horizon?

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Asked by Wiki User

The larger the black hole, the weaker the tidal forces experienced by an object near its event horizon. Therefore, the black hole with the weakest tidal forces would be the most massive and least compact one.

Can a person be pulled by a black hole the size of a quarter?

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Asked by Wiki User

The answer to this question depends on what is meant by 'size of a quarter'.

Black holes themselves are mathematically considered to be points; therefore, every black hole in existence is not only smaller than a quarter, they're smaller than even the nucleus of an atom.

If the black hole has an event horizon that reaches approximately one inch (2.5 cm.) out from its center, then the answer is very likely yes. Such a tiny black hole would still have approximately the mass of a planet, and we all know from direct experience how powerful Earth's gravity is.

But if the black hole has the mass of a quarter, then the answer is obviously no.

How can the mass of a black hole can be measured?

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Asked by Wiki User

The mass of a black hole can be measured by observing the orbits of objects around it, such as stars or gas clouds. By studying the gravitational effects of the black hole on these objects, astronomers can calculate its mass. Another method is to measure the distortion of light from objects behind the black hole, known as gravitational lensing, which can provide information about the black hole's mass.

Is it possible for a black light to miss semen?

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Asked by Wiki User

Yes, it is possible for a black light to miss detecting semen if the amount of semen is very small or if it is not in an area that is being illuminated by the black light. The effectiveness of a black light in detecting semen may also depend on factors such as the surface it is on and the age of the semen.

How big is the event horizon of a 100-solar-mass black hole?

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Asked by Wiki User

The event horizon of a 100-solar-mass black hole is about 295 kilometers in radius. It represents the point of no return beyond which nothing, not even light, can escape the gravitational pull of the black hole.

Can a black hole as small as your finger suck up the earth?

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Asked by Wiki User

No, a black hole the size of a human finger would not have enough mass or gravitational pull to suck up Earth. In order to pose a threat to Earth, a black hole would need to be much larger, with a mass comparable to that of a star.

What are black holes and are they real?

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Asked by Wiki User

Black holes are regions in space with such strong gravitational pull that nothing, not even light, can escape from them. They are thought to be real objects in our universe based on the evidence from observations of their effects on surrounding matter and light.

What happens when you smash an atom in a black hole?

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Asked by Wiki User

When an atom is smashed in a black hole, its particles are torn apart due to the extreme gravitational forces. The subatomic particles are then absorbed into the black hole, adding to its mass and energy. The energy released during this process can contribute to the black hole's growth and power its intense gravitational pull.