Ok, time's up!
Quote:
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A spacecraft would have to reach a speed of 93,000 miles per hour just to pull away from the sun's gravity. And it would take 80,000 years to reach Alpha Centauri if it could maintain that speed.
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LINK
The winner is JamesK, post#49 92.755 mph is the closest answer!
We would like to thank all of you who participated in this thread and of course thanks a lot to GFY!
