Concept
Cosmological Constant
A constant energy density of empty space.
A term in Einstein's equations representing the energy of the vacuum, today identified with dark energy and accelerated expansion.
Overview
A term in Einstein's equations representing the energy of the vacuum, today identified with dark energy and accelerated expansion.
See also
Heliopause
The edge of the Sun's bubble in space.
Singularity
A point of infinite density inside a black hole.
Coronal Gas
Very hot, low-density interstellar plasma.
Cold Dark Matter (CDM)
Dark-matter candidate, dark-energy model, or related cosmological problem.
Warm Dark Matter (WDM)
Dark-matter candidate, dark-energy model, or related cosmological problem.
Hot Dark Matter (HDM)
Dark-matter candidate, dark-energy model, or related cosmological problem.