Question 189857: Alpha Centauri, which lies 4.4 light years away, is the closest star system. It would be good candidate for discovering an Earth-like world. The distance to Alpha Centauri is 3,000 times farther than any space probe has ever traveled.
In miles, how far is the journey to Alpha Centauri?
In miles, approximately how far has the furthest space probe traveled?
Found 2 solutions by ankor@dixie-net.com, schrammbledeggs:
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! Alpha Centauri, which lies 4.4 light years away, is the closest star system. It would be good candidate for discovering an Earth-like world. The distance to Alpha Centauri is 3,000 times farther than any space probe has ever traveled.
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In miles, how far is the journey to Alpha Centauri?
4.4 yrs * no. of seconds in 1yr * 186,000mi
4.4 * 3600 * 24 * 365 * 186000 = 2.58(10^13) miles
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In miles, approximately how far has the furthest space probe traveled?
 = 8,600,000,000 miles
Answer by schrammbledeggs(41)  (Show Source):
You can put this solution on YOUR website! Since 1 light year = 5.87849981 × 10^12 miles
4.4 * 5.87849981 x 10^12 miles = 2.58653992 × 10^13 miles
For the second part just take the answer from the first part and divide by 3000:
2.58653992 x 10^13 miles / 3000 = 8.62179973 × 10^9 miles
:)
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