22. Light travels at 186,282 miles per second. Based on a 365 -dayyear̃, how many miles will light travel in one year? Express your answer in scientific notation to the nearest thousandth.

In one year, light travels an astonishing distance! To calculate this, first recognize that there are 86,400 seconds in a day (24 hours x 60 minutes x 60 seconds) and 365 days in a year. So, light travels approximately 31,536,000 seconds in a year. Multiplying that by 186,282 miles per second gives you about 5,878,625,373,183.6 miles! In scientific notation, this is approximately 5.878 x 10¹² miles. Fun fact: The distance light travels in a year is called a "light-year." This unit is commonly used in astronomy to measure vast distances between celestial objects. When you hear that a star is a certain number of light-years away, just know that it's really far – like, mind-blowingly far!