Anonymous
Anonymous asked in Science & MathematicsAstronomy & Space · 1 year ago

# Can a black hole be made from light?

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• 1 year ago

Yes. Light is energy. Energy produces gravity. Gravity makes black holes. So an intense beam of light can and will form a black hole.

• drake1 year agoReport

Nice answer. Contrary to what others commented, expert scientists do say light has mass, (because it has energy), and also gravitationally attracts other massive things.

• ?
Lv 7
1 year ago

Sure... DO you see black on your computer monitor, cell phone etc... That is proof Light can be turned black..

If also IF YOU KNOW WHAT A PROJECTOR IS.. DOES IT SHOW BLACK ON a WHITE SCREEN... THERE is your answer... YES there is Proof there IS BLACK LIGHT... Otherwise how can you see Black on a white surface such as a movie screen..

• Anonymous
1 year ago

Yes, it seems ironic, but light can be turned into the ultimate dark monster. It's called a Kubelblitz (German for "ball lightening"), but a black hole can be made from either mass or energy. Einstein's famous equation E=mc^2 shows that energy and mass are equivalent things, mass can be turned into energy, and energy can be turned into mass. So in theory, the universe's smallest black hole would be one that concentrates 1 Planck Mass into a volume of 1 Planck Volume. You could just as easily replace the 1 Planck Mass with 1 Planck Energy, and you would have the same black hole.

1 Planck Mass isn't very big, it's not even as heavy as a grain of sand. 1 Planck Energy also isn't very big, it's not even hot enough to heat your morning coffee. 1 Planck Volume is incredibly small, it's trillions upon trillions of times smaller than any atom; it's smaller in relation to atoms, as atoms are in relation to us. But if you put any of these tiny things together, you have enough to create a tiny black hole.

• 1 year ago

No Light does not have any Mass

Black Holes get so Massive just by basically eating Mass

And that includes light

They are pitch Black as they don't produce any Light

Of course, if you were up close to one you would watch all the radiation produced as Matter and Light fall in and feel the heat from friction that we know as Hawking Radiation

But DON'T DO THAT !!!

• goring
Lv 6
1 year ago

The background of the Physical universe that astronomers observe appears black.The Sun against this back ground appears as a white hole.As far as a black hole is concerned as part of the background appears invisible since what is called a black hole is devoid of light.

Hence any celestial body that does not produce light appears invisible that mass can be considered as a black spherical mass such as a planet that does not receive light and cannot emit and reflect a great amount of light

Light particles cannot be shadowed. Hence we cannot observe the geometry of a massive particle of Light.

Hence light only appears visible when it molds and reflects mass structures.

The signal that comes from our massive surrounding can reach a detecting mechanism called the eye in Humans.

Without the eye we can only sense light on our body as heat temperature.

The massive particle of light has been calculated as being the most dense mass of the Universe. It is calculated as mass per unit volume which is approx = 2 x10^53 kilograms per cubic meter

• 1 year ago

As a black hole has a huge mass in a very small volume, and light *has* no mass, the answer is no.

• neb
Lv 7
1 year agoReport

Quantumclaustophobe - you are absolutely wrong. The source of gravity in GR is the stress-energy tensor. It has 10 components which include energy density, momentum density, pressure/stress. The energy density component usually predominates, and can be the energy density of mass or massless fields.

• Tom S
Lv 7
1 year ago

Nope, mass, a lot of mass.

• neb
Lv 7
1 year ago

In theory, yes. It is called a Kugelblitz.

In practice, no. There would be no way it could form naturally.

The source of gravity in general relativity is called a stress-energy tensor. There is a stress-energy tensor for light. All massless particles produce gravity since they have both energy and momentum. However, the energy density of a massless particle is very, very small compared to a particle with mass so they gravitate very weakly.

• Anonymous
1 year ago

No. Photons don’t have enough mass.