Sites dealing with explanations for the observed acceleration of our universe's expansion, which can be described either by what is called the cosmological constant or by assuming that empty space is filled with an energy form known as Dark Energy.
The Cosmological Constant
Review article by Sean Carroll (Caltech) on one of the most important open cosmological questions: the physics behind the acceleration of cosmic expansion. Requires undergraduate physics knowledge. Published in the electronic review journal, Living Reviews in Relativity
Dark Energy Survey
Project aiming to understand why the universe is accelerating and not being slowed by the mass it contains.
Quintessence and the Cosmological Constant
A review of the basic idea of the cosmological constant, and of proposals to replace it by a time-varying field. By Michael Doran and Christof Wetterich.
Supernova Cosmology Project
Homepage of a research project based at Lawrence Berkeley National Laboratory, dedicated to using observations of supernova explosions to measure the distance of far-away galaxies; this, in turn allows one to map the properties of cosmic expansion.
Last update:August 16, 2012 at 6:15:03 UTC