Term
|
Definition
| The study of the origin, structure, processes, and evolution of the universe is called cosmology. |
|
|
Term
|
Definition
| The big bang theory is the standard model used to explain the expansion of the universe. |
|
|
Term
| cosmic backround radiation |
|
Definition
In 1964, scientists noticed that radio "noise" was coming from all directions in space. This "noise" is the cosmic backround radition, left over from the big bang. |
|
|
Term
|
Definition
23% of the universe consists of dark matter. Dark matter does not give off light but has gravity and can be detected indirectly. |
|
|
Term
|
Definition
| The remainder of the universe consists of dark energy. Dark energy seems to be accelerating the expansion of the universe and counteracting the effect of gravity. |
|
|
