The average distance is about 150 million kilometers (149.6) or 93 million miles (92.9). This is defined as 1 astronomical unit, or AU, and is equal to about 8.2 light-minutes, as light from the Sun takes about 8 minutes to reach Earth.
The definition of a scourge is someone or something that causes a lot of trouble, problems or suffering. An example of a scourge is famine or the outbreak of a disease. YourDictionary definition and usage example.
To scour is defined as to clean or polish, often by hard scrubbing, or to get rid of something negative. 1  An example of to scour is to clean out a greasy pot. 2  An example of to scour is to get rid of fleas in a home.  to clean or polish by vigorous rubbing, as with abrasives, soap and water, etc.; make clean and bright.