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If it could, and it couldn't - it would be about the size of a marble of 0.35" radius.
Earth couldn't become a black hole because it has too little mass even though, theoretically, micro black holes could exist. [See related link] The smallest known black hole has 3.8 solar masses. Earth is a tiny, tiny fraction of that mass.
But if there were an Earth-mass black hole, theoretically it would have the 0.35" radius, according to two different formulas.
Cornell University Astronomers give the formula R = (3km) x (M / Msun), where R is the Schwarzschild radius (radius of edge of black hole beyond which nothing returns, ever); M= mass of Earth (or whatever); Msun = mass of the sun. [See related link]
Another formula for calculating the R above uses instead Newton's gravitational constant (G), the mass of the object (m), and the speed of light (c). [See related link]
What else can I help you with?
Can 8 earth's fit in the black hole?
yes and no depends on size of hole :]
Is the black hole big?
Well if your comparing the smallest black hole knowen to humans to the Earth YES THEY ARE BIG but there is no definant diameter or size considering that all black holes are unique in all three size diameter and gravataional pull.
What if a black hole swallowed the earth?
A black hole is basically an imploded star's remnants that DO NOT turn into a nebula or space dust of some type. However, for a "dead" star to become a black hole it must be very big and have tons of mass. The Sun doesn't have that size requirement, therefore cannot be a black hole theoretically.
Can a black hole as small as your finger suck up the earth?
First of all, every black hole has the same size ... its length, width, height, radius, depth, diameter, area, and volume are all zero. What varies from one black hole to another is their mass. Next, black holes don't reach out and grab things that happen to be passing by. Outside of the hole's "event horizon" it has the same influence as any other object with the same mass. Other bodies that pass a black hole at a distance at which they're moving slower than escape velocity will settle into orbit around the hole.
Should you be worried that a black hole might one day swallow up the Earth?
No. The nearest black hole is thousands of light years away, and it would take a star about 20x the size of the Sun to create one.
If Earth can converted to black hole then what will be the size?
The radius, in that case, would have to be a little less than 1 cm.
Can 8 earth's fit in the black hole?
yes and no depends on size of hole :]
Is the black hole big?
Well if your comparing the smallest black hole knowen to humans to the Earth YES THEY ARE BIG but there is no definant diameter or size considering that all black holes are unique in all three size diameter and gravataional pull.
What is smaller black hole or white dwarf planet?
Depends!!!A white dwarf created from a star the same size as our Sun will only be the size of our Earth.A supermassive black hole can have a diameter of 150 million kilometers (Same distance from the Earth to the Sun).However a stellar black hole can only be 30 kilometers in diameter.There is no minimum size for a black hole, so one "could" be as small as 0.1mm
Could black holes ever be technologicall created?
if you crush something the size of planet earth into something the size of a dime, it is tecnically "possible" to create a black hole.
How big is a black hole and what factors determine its size?
A black hole's size is determined by its mass, which is the amount of matter it contains. The more mass a black hole has, the larger its size. The size of a black hole is typically measured by its event horizon, which is the point of no return where gravity is so strong that not even light can escape. The event horizon's size is directly related to the mass of the black hole.
What will happen to earth from the milky way galaxy black hole?
The theory of a black hole and galaxies is that a black hole created a galaxy or was formed by a galaxy, if that makes sense.Eventually, our solar system will get sucked in. But this will happen in about over a billion years!add. For such a size of black hole, the timescale would be in the billions of years. But before which our Sun would have overwhelmed our Earth in its Red Giant phase.
What happens after entering a black hole?
Any matter that enters the black hole will be destroyed. Also, it will increase the black hole's size.
Can a black hole get to the size of a planet?
A black hole can definitely get to the size of a planet. The width of the largest known supermassive black hole is thought to be over ten times the size of the entire orbit of Neptune around our Sun.
What if a black hole swallowed the earth?
A black hole is basically an imploded star's remnants that DO NOT turn into a nebula or space dust of some type. However, for a "dead" star to become a black hole it must be very big and have tons of mass. The Sun doesn't have that size requirement, therefore cannot be a black hole theoretically.
Can a black hole as small as your finger suck up the earth?
First of all, every black hole has the same size ... its length, width, height, radius, depth, diameter, area, and volume are all zero. What varies from one black hole to another is their mass. Next, black holes don't reach out and grab things that happen to be passing by. Outside of the hole's "event horizon" it has the same influence as any other object with the same mass. Other bodies that pass a black hole at a distance at which they're moving slower than escape velocity will settle into orbit around the hole.
Is the Earth bigger than a Black hole?
It depends on the mass of the black hole. The size of the event horizon is directly proportional to mass. Most black holes are what we call "stellar mass" black holes which range from about 3 times to 30 times the mass of the sun. The event horizon of a 30 solar mass black hole would be about 110 miles in diameter. Earth, by comparison, is just over 7,900 miles in diameter. An intermediate mass black hole about 1,340 times the mass of the sun would have an event horizon about the same size as Earth. Astronomers have detected supermassive black holes up to 12 billion times the mass of the sun. Such a black hole would have an event horizon 44 billion miles across, or about 5 times larger than the orbit of Pluto.
