Dark energy is a proposed form of energy that affects the universe on its largest scales, whose primary effect is to drive the accelerating expansion of the universe. It was inferred in 1998 from observations of distant Type Ia supernovae, which appeared fainter, and therefore farther away, than expected in a universe expanding at a constant or decelerating rate. In the standard cosmological model it accounts for the majority of the universe's total mass-energy content.
Facts
Concept Domain Formulated YearThe High-Z Supernova Search Team published the founding observations of Type Ia supernovae in 1998; the Supernova Cosmology Project independently reported an accelerating expansion in 1999. Proposed ByHigh-Z Supernova Search Team and Supernova Cosmology Project 1 Led respectively by Brian Schmidt and Adam Riess, and by Saul Perlmutter; the three shared the 2011 Nobel Prize in Physics for the discovery. Connections
Associated With
Source Wikipedia (space and spaceflight articles)
Source Wikipedia (space and spaceflight articles)
Source Wikipedia (space and spaceflight articles)
Source Wikipedia (space and spaceflight articles)
Source Wikipedia (space and spaceflight articles)
Source Vera C. Rubin Observatory / LSST - AboutVera C. Rubin Observatory / LSST Corporation
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia FoundationDark energy, discovery section
In 1998, the High-Z Supernova Search Team published observations of Type Ia supernovae. In 1999, the Supernova Cosmology Project followed by suggesting that the expansion of the universe is accelerating.
- Associated With: Dark Matter
- Associated With: Big Bang Theory
- Associated With: Cosmological Constant
View the Source Dark energy (Wikipedia)
Dark energy, lead section
Dark energy is a proposed form of energy that affects the universe on its largest scales. Its primary effect is to drive the accelerating expansion of the universe.
In Group: Dark Matter and Dark Energy, Lead sentence
In physical cosmology and astronomy, dark energy is a proposed form of energy that affects the universe on its largest scales.
View the SourceVera C. Rubin Observatory / LSST - About
Vera C. Rubin Observatory / LSST Corporation, Vera C. Rubin Observatory / LSST CorporationAssociated With: Vera C. Rubin Observatory, Funding agencies sectionQuote, Associated With: Vera C. Rubin Observatory, Funding agencies section
National Science Foundation (NSF) - Cooperative Agreement No. 1258333; Department of Energy (DOE) Office of Science - Contract No. DE-AC02-76SF00515
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