Astrophysics terms starting with G

7 terms

1. Galaxy A cluster of stars held together by their own gravity, and apparently dark matter as well.
2. General Relativity See Relativity.
3. Geocentric A model of the universe, believed by Aristotle, and Ptolemy which puts the earth at the center.
4. Geometries Models of the curvature of the universe in which the laws of geometry are like those that would apply on flat, spherical, or saddle-shaped surfaces.
5. Globular Clusters A collection of hundreds of thousands of old stars held together by gravity.
6. Gluon The carrier particle of the strong interactions. It holds quarks together and the atom's nucleus together.
7. Gravitational Attraction The interaction of particles due to their mass/energy.