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Einstein's Biggest Blunder? High-Redshift Supernovae and the Accelerating Universe

Alexei V. Filippenko
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Abstract

Nearly 4 years ago, two teams of observational astronomers reported that high-redshift Type Ia supernovae are fainter than expected in a decelerating or freely coasting universe. The radical conclusion that the universe has been accelerating in the past few billion years, possibly because of a nonzero value for Einstein's cosmological constant, has gripped the worlds of astronomy and physics, causing a flurry of new research. Having participated on both teams (but much more closely with one than the other), here I provide a personal, historical account of the story.

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Alexei V. Filippenko. 2001-11-20. Einstein's Biggest Blunder? High-Redshift Supernovae and the Accelerating Universe. https://doi.org/10.1086/324512

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