A light-year is a unit of distance, defined as the distance that light travels in one year in a vacuum. Light travels at a speed of approximately 186,282 miles per second.
To calculate the distance in miles corresponding to 8 billion light-years, we need to multiply the speed of light by the number of seconds in a year and then multiply that by 8 billion. Here's the calculation:
186,282 miles/second * 60 seconds/minute * 60 minutes/hour * 24 hours/day * 365.25 days/year * 8 billion years
Performing the calculation, we get:
(186,282 miles/second) * (60 seconds/minute) * (60 minutes/hour) * (24 hours/day) * (365.25 days/year) * (8,000,000,000 years)
This calculation results in approximately 46,569,512,000,000,000,000 miles.
Therefore, 8 billion light-years is approximately equal to 46,569,512,000,000,000,000 miles.