Since their paths cross, is it possible that Pluto and Neptune could collide?

quickfire

Pluto's orbital period is exactly 1.5 times that of Neptune. So every time Pluto goes around the sun twice, Neptune goes around thrice. This ensures that the two will never meet. http://www.astronomy.com/content/static/beginners/faaq.asp Dec 06 03, 9:57 AM

Hamlet.

Also, the path of Pluto is inclined at an angle of 17.2 degrees and never truely crosses Neptune's path. In many two-dimensional orbital diagrams, it would appear that they cross, but in three dimensional diagrams, it is clear that they actually do not. Dec 06 03, 10:03 AM

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Do scientists know what the consequences will be if Pluto hits Uranus or Neptune, and when will it happen? How long would it take to reach Pluto, or Neptune if that happens to be the furthest planet out at the time? Today, was is the longest possible time a US President could serve? In our solar system, are there any moons as large as a planet? Since Pluto is so controversial, it doesn't count as a planet in my question.

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