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We Can't Measure Distance In Outer Space!

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Get Nebula for 40% off with my link: Then watch my next video early: We can't measure the distance to astronomical objects directly, so we have to be creative. That's why we need the cosmic distance ladder. It's a serious of techniques we use to calculate astronomical distances indirectly. Nick Lucid - Host, Writer, Editor, Animator Em Lucid - Producer Nora Bailey - Researcher, Fact-Checker ________________________________ VIDEO ANNOTATIONS/CARDS Black Hole Misconceptions: ________________________________ RELATED YOUTUBE VIDEOS SciShow Space on Distance Ladder: ________________________________ SUPPORT THE SCIENCE ASYLUM Patreon: YouTube Membership: Advanced Theoretical Physics (Paperback): Advanced Theoretical Physics (eBook): Merchandise: ________________________________ HUGE THANK YOU TO THESE SUPPORTERS Asylum Counselors: Bosphorus Asylum Orderlies: Dhruv Singhal, Medec Hurtz Einsteinium Crazies: Benjamin Sharef, Eoin O'Sullivan, Jonathan Lima, Joseph Salomone, Kevin Flanagan, Sean K, YouTubeviewer2014 Plutonium Crazies: Al Davis, Compuart, Ellis Hall, Fabio Manzini, Kevin MacLean, LT Marshall, Rick Myers, Vid Icarus Platinum Crazies: Clayton Bruckert, David Johnston, Jonathan Reel, Joshua Gallaghe, Marino Hernandez, Mikayla Eckel Cifrese, Mr. Orn Jonasar, Olga Cooperman, Thomas V Lohmeier ________________________________ SOURCES Radar Ranging: (73)90002-X Parallax: Cepheid Variables: Type 1a Supernovas: Cosmological: ~wright/ ________________________________ LINKS TO COMMENTS ________________________________ IMAGE/VIDEO CREDITS Apollo Retrorefector: : Deep Field Flythrough: Gaia Animation: Milky Way (Artist Rendition): Type 1a Supernova: : Barred Spiral Galaxy (NGC 1300): Redshift Cube: Redshift Zoom: Galaxy GLASS-z12: : ________________________________ TIME CODES 00:00 Cold Open 00:22 Introduction 02:05 Radar Ranging 04:17 Inverse Square Law 04:57 Stellar Parallax 08:46 Standard Candles 10:58 Cepheid Variable Stars 12:58 Type 1a Supernovas 15:15 Cosmological Redshift 18:37 Summary 19:44 Nebula Ad 20:52 Outro 21:05 Featured Comment

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