Observations of supernova explosions halfway back to the Big Bang give plausible evidence that the expansion of the universe has been accelerating since that epoch, approximately 8 billion years ago and suggest that energy associated with the vacuum itself may be responsible for the acceleration. But there are other compelling theories that have been percolating out there.
Sunday, July 1, 2012
Dark Energy: Do Distant Supernovas Prove Its Existence?
Observations of supernova explosions halfway back to the Big Bang give plausible evidence that the expansion of the universe has been accelerating since that epoch, approximately 8 billion years ago and suggest that energy associated with the vacuum itself may be responsible for the acceleration. But there are other compelling theories that have been percolating out there.
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