What is the possibility of time travel?
Time travel to the past is theoretically possible in certain general relativity spacetime geometries that permit traveling faster than the speed of light, such as cosmic strings, traversable wormholes, and Alcubierre drives.
Can we travel to alternate universes?
If you are an advocate of a multiple big bang multiverse, then that would mean that leaving our universe to travel to another would be just as impossible as travelling back to the time before the big bang that resulted in our universe even happened. No matter—you’ve worn them both, in two separate parallel universes.
Is it possible to time travel support your answer using the consequences of special relativity?
Real-life time travel occurs through time dilation, a property of Einstein’s special relativity. Einstein was the first to realize that time is not constant, as previously believed, but instead slows down as you move faster through space.
What is the wormhole theory?
A wormhole (or Einstein–Rosen bridge or Einstein–Rosen wormhole) is a speculative structure linking disparate points in spacetime, and is based on a special solution of the Einstein field equations. Wormholes are consistent with the general theory of relativity, but whether wormholes actually exist remains to be seen.
How wormhole is created?
We place two massive objects in two parallel universes (modeled by two branes). Gravitational attraction between the objects competes with the resistance coming from the brane tension. For sufficiently strong attraction, the branes are deformed, objects touch and a wormhole is formed.
Is there any white hole in universe?
Schwarzschild wormhole A white hole is a black hole running backwards in time. Just as black holes swallow things irretrievably, so also do white holes spit them out. White holes cannot exist, since they violate the second law of thermodynamics. General Relativity is time symmetric.
Can a black hole come to earth?
Now, astronomers have discovered a black hole with just three times the mass of the sun, making it one of the smallest found to date—and it happens to be the closest known black hole, at just 1,500 light-years from Earth. …
Who died in black hole?
Modern historians believe that 64 prisoners were sent into the Hole, and that 43 died there.
What is the lifespan of a black hole?
A black hole with the mass of the sun will last a wizened 10^67 years. Considering that the current age of our universe is a paltry 13.8 times 10^9 years, that’s a good amount of time.
What happens to a black hole at the end of its life?
Over time they shrink down to nothing and simply pop away in a flash of energy. It’s not exactly fast. A good size black hole — say, a few times more massive than the sun — will take about 10^100 years to eventually evaporate through this process, known as Hawking Radiation.
Where does stuff in a black hole go?
It can never leave that region. For all practical purposes the matter has disappeared from the universe. Once inside the black hole’s event horizon, matter will be torn apart into its smallest subatomic components and eventually be squeezed into the singularity.
Is the universe inside a black hole?
A black hole cosmology (also called Schwarzschild cosmology or black hole cosmological model) is a cosmological model in which the observable universe is the interior of a black hole. According to general relativity, the gravitational collapse of a sufficiently compact mass forms a singular Schwarzschild black hole.