Time scales - Education infogram

"Light-travel distance. This distance is the time (in years) that it took light to reach the observer from the object multiplied by the speed of light. For instance, the radius of the observable Universe in this distance measure becomes the age of the Universe multiplied by the speed of light (1 light year/year) i.e. 13.8 billion light years. Also see misconceptions about the size of the visible universe." [Distance measures (cosmology). Wikipedia] The educational infogram "Time scales" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Education Infographics solition from the area "Business Infographics" in ConceptDraw Solution Park.