Space = Place, where is something, matter. Black Hole = Matter planet, which color is named 'Black'. Time = Measuring unit, born at earth rotating round sun. Matter = Something which make forms. Life = Is in matter. Light = Some kind of matter thing. Light speed= Measured maximum speed of light (distance/time) Mass = Matter amount. Big Bang = Big explose, matter explose. Not natural thing. (Look atom-bomp.) Gravity = Named view of matter movement process. Backround radiation = Measured temperature 2.7 Kelvin, which exist at space. Temperature= Matter moving process cause effect, named temperature. Measuring equipments = Can measure matter moving process. Measuring = Viewing of something exist.

Exist = Life, natural life.

Astronomy words?