galaxy, a collection of stars, dust, and gas bound together by gravity, cluster, a group of stars or galaxies bound by gravity, interstellar matter, the gas and dust located between the stars in a galaxy, quasar, very luminous objects that produce energy at a high rate and that are thought to be the most distant objects in the universe, red shift, an apparent shift toward longer wavelengths of light caused when a luminous object moves away from the observer, blue shift, an apparent shift toward shorter wavelengths of light caused when a luminious object moves toward the observer, big bang theory, the theory that all matter and energy in the universe was compressed into an extremely small vol-ume that 10 to 20 billion years ago exploded and began expanding in all directions

20.2 & 3

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?