زمین شناسی

Science, knowledge.

Sciences, branches of knowledge.

To measure or ascertain the size/quantity.

The strength and vitality required for sustained physical or mental activity.

A scientific procedure undertaken to make a discovery.

A room or building used for scientific research, experiments, or testing.

Scientist; a person engaged in scientific research.

A person trained to travel in a spacecraft.

Physicist; a scientist who specializes in the study of physics.

Galaxy.