How rare are planetary alignments? Neil deGrasse Tyson and comedian Chuck Nice explain the alignments and conjunctions of the planets in our solar system.

What does it mean for the planets to be aligned? Does that mean that something special will happen or you will have good luck? We discuss the plane of the solar system, the origins of the days of the week, and what it means to be in alignment. That, plus, what is the difference between alignments and conjunctions?

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Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic cohosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!

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00:00 Introduction
01:14 The Order of the Planets
6:58 What Makes Alignment Special
8:13 When Alignments Repeat
9:58 Planetary Conjunctions