How Many Miles Did A Space Probe Travel From Earth To The Planet Pluto If The Radio Signal Took 4 Hours 25 MinutesTo Arrive?

On July 14, 2015 7:49AM EDT, New Horizons space probe flew 7,800 miles (12,500 km) above the surface of Pluto.

(4.42 hours)(60 minutes/hour)(60 seconds/minute)
= 15,900 seconds

(15,900 seconds)(1.86 x 10⁵ miles/second)
= 2.96 x 10⁹ miles
= 4.76 x 10⁹ km
= 31.8 Astronomical Units

http://www.universetoday.com/119264/how-long-does-it-take-to-get-to-pluto/
http://www.universetoday.com/13891/distance-to-pluto/
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