Dark energy
Abstract
Dark energy is the name given to the unknown physics causing the current acceleration of the cosmic expansion. Whether dark energy is truly a new component of energy density or an extension of gravitational physics beyond general relativity is not yet known.
From: Mattia Galiazzo Address: mattia.galiazzo@univie.ac.at Database: ast- Publication:
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Scholarpedia
- Pub Date:
- February 2008
- DOI:
- 10.4249/scholarpedia.4900
- Bibcode:
- 2008SchpJ...3.4900L