What is the lifespan of a small black hole?

Answer 1

when a red supergiant dies it goes super nova and under the tremendous force of its own explosion it collapse into itself and becomes a black hole. for one to form a large star has to go through its entire life span and die. this usually takes about 9 billion years.

Answer 2

If we assume we are talking about a black hole of average size it would take roughly 1.2x10^67 earth years to die out.

(aka 12,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 years) Answer

Steven Hawking has theorized that Black Holes emit "Hawking Radiation" and that the rate of emission is proportional to the cube of the hole's mass. This implies that they are evaporating and will, at some point in time, disappear. Large black holes (mass greater than the sun) will essentially last forever, this falls to 2 to 3 billion years for masses of10 11 kg. To get down to a black hole with a life span of 1 second, the hole would have to have a mass of about 2.28 × 105 kg. The recently constructed LHC in Europe was supposed to have the potential of creating mini-black holes, but these would evaporate almost as soon as they were created.

Answer 3

The lifespan of a black hole is proportional to its mass. A stellar-sized black hole (with a star-sized mass) has an eons-long lifespan while a small black hole (perhaps with the mass of a couple of protons?) will not exist for more than a tiny fraction of a second. Answer

Steven Hawking has theorized that Black Holes emit "Hawking Radiation" and that the rate of emission is proportional to the cube of the hole's mass. This implies that they are evaporating and will, at some point in time, disappear. Large black holes (mass greater than the sun) will essentially last forever, this falls to 2 to 3 billion years for masses of10 11 kg. To get down to a black hole with a life span of 1 second, the hole would have to have a mass of about 2.28 × 105 kg. The recently constructed LHC in Europe was supposed to have the potential of creating mini-black holes, but these would evaporate almost as soon as they were created.

Answer 4

No one actually know the life span of a black hole, but one day it will shrink and die. However It can live for billions, billions, billions and billions of years, the black holes that were created from the beginning of the Universe are still active.

Answer 5

Black holes are hypothesized to exists since the creation event of the Big Bang, which would make them approximately 13.7 billion years old. According to the Big Bang Model, during the first few moments after the Big Bang, pressure and temperature were extremely high. Under these conditions, simple fluctuations in the density of matter may have resulted in local regions dense enough to create black holes. Although most regions of high density would be quickly dispersed by the expansion of the universe, a primordial black hole would be stable, persisting to the present.

Answer 6

The predicted black hole lifetimes, via its mass density, range from between 2.667 billion years and 2.098 × 1067 years. The latter being much longer than the current age of the universe at 13.73 ± 0.12 x 109 years.

Answer 7

As best we can determine and calculate, the first black holes appeared about 400 million years after the Big Bang. Thus, a little over thirteen billion years old.