Supernovae, an accelerating universe and the cosmological constant.
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- Record sourced from PubMed, PMID 10200242.
- Also identified by PMC identifier 33557.
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Abstract
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.