* Planetary Orbits Aren't Perfectly Aligned: Planets orbit the sun in slightly different planes and at different speeds. They're never in a perfectly straight line, like marbles on a string.
* "Line Up" is Relative: Even if the planets were on the same plane, a "line up" would be temporary. Due to their varying speeds, planets are constantly shifting positions.
* Planetary Conjunctions: What we often see as "alignments" are actually planetary conjunctions, where planets appear close together in the sky from Earth's perspective. These events are still pretty rare and can be quite beautiful.
So, while we don't have a perfect "planet line-up" moment, planetary conjunctions offer a chance to witness the planets appearing close together in the sky.
