The Parsec: Why Do We Even Use This Weird Unit?

Why is a parsec 648,000 AU divided by pi—and is it actually useful? Join us for a hilariously nerdy journey through parallax, cosmic distances, Star Wars’ famous blunder, and some truly gigantic (and mostly pointless) units. Space math has never been this entertaining. #Space #Science #Astronomy Subscribe to our channel for more curious science! Tell us what you liked most about the video in the comments! 👉 This channel was created in collaboration with    / @epenser1   0:06 - The Astronomical Unit's Odd Precision 4:10 - Defining the Parsec Through Angles 7:01 - Understanding Parallax 10:41 - Deriving the Parsec 13:50 - The Parsec's Scale and Usefulness 18:24 - Larger SI Units and the Observable Universe