- Jan 21, 2004
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(read the highlighted part to get the cliffs)
Phantom energy may fuel universe-eating wormholePremium
The latest theory on how the universe will end involves everything being swallowed by a giant wormhole ? a scenario dubbed the 'Big Trip'
The latest theory on how the universe will end involves everything being swallowed by a giant wormhole ? a scenario dubbed the 'Big Trip'.
According to cosmologist Pedro Gonzalez-Diaz at the Institute of Mathematics and Fundamental Physics, CSIC, Madrid, the gradual inflow of so-called phantom energy into a wormhole could cause it to swell up so much so that it would eventually engulf the entire universe.
Phantom energy is a hypothetical explanation for dark energy; the puzzling stuff thought to be responsible for the accelerated expansion of the universe. The defining property of phantom energy is that its energy density ? the amount of energy per unit volume ? increases over time.
The energy density of all known matter, by contrast, decreases or remains constant over time. This has led some theorists to suggest that phantom energy will cause the universe to grow ever faster until it eventually ?blows up? ...
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I didn't know there was anything that was preventing the universe from expanding("blowing up") besides gravity....but thats not really squeezing the universe from the outside to prevent it from blowing up...instead its just pulling things together.
if the universe kept on expanding to a point where lets say the gravity of one galaxy had very little to almost no affect on another....is that what they are trying to refer to when they talk about the universe "blowing up"?
my logical assumption on this topic is that the universe can't blow up because besides gravity, there is nothing preventing it from expanding.
i feel very lost on this topic for some strange reason. please help guys
Phantom energy may fuel universe-eating wormholePremium
The latest theory on how the universe will end involves everything being swallowed by a giant wormhole ? a scenario dubbed the 'Big Trip'
The latest theory on how the universe will end involves everything being swallowed by a giant wormhole ? a scenario dubbed the 'Big Trip'.
According to cosmologist Pedro Gonzalez-Diaz at the Institute of Mathematics and Fundamental Physics, CSIC, Madrid, the gradual inflow of so-called phantom energy into a wormhole could cause it to swell up so much so that it would eventually engulf the entire universe.
Phantom energy is a hypothetical explanation for dark energy; the puzzling stuff thought to be responsible for the accelerated expansion of the universe. The defining property of phantom energy is that its energy density ? the amount of energy per unit volume ? increases over time.
The energy density of all known matter, by contrast, decreases or remains constant over time. This has led some theorists to suggest that phantom energy will cause the universe to grow ever faster until it eventually ?blows up? ...
---------------
I didn't know there was anything that was preventing the universe from expanding("blowing up") besides gravity....but thats not really squeezing the universe from the outside to prevent it from blowing up...instead its just pulling things together.
if the universe kept on expanding to a point where lets say the gravity of one galaxy had very little to almost no affect on another....is that what they are trying to refer to when they talk about the universe "blowing up"?
my logical assumption on this topic is that the universe can't blow up because besides gravity, there is nothing preventing it from expanding.
i feel very lost on this topic for some strange reason. please help guys