Record updated \"Dark Energy\" --Do Distant Supernovas Prove Its Existence? | Dekut


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\"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.

High red-shift supernovas have helped astronomers to discover one of the greatest mysteries of science, acting like a time machine to help us understand why the universe is spreading out at an accelerating rate, according to Robert Kirshner, Clowes Professor of Science, Harvard University. Kirshner is one of the world's leading experts in the physics of supernovae, supernova remnants, the Large-scale structure of the cosmos, and the use of supernovae to measure the expansion of the universe.

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