How Might A Long-period Comet Become A Short Period Comet?

How Might A Long-period Comet Become A Short Period Comet? As theorized by astronomer Gerard Kuiper in 1951, a disc-like belt of icy bodies exists beyond Neptune, where a population of dark comets orbits the Sun in the realm of Pluto. These icy objects, occasionally pushed by gravity into orbits bringing them closer to the