Is it possible to find cosmic dust on Earth? That’s the question jazz-musician-turned-citizen-scientist Jon Larsen set out to answer. Over the course of a decade and in defiance of the experts, Jon collected dust from around the world using a magnet in search of micrometeorites. Would his efforts be successful, or would his search be in vain? And how do these tiny wonders clue us into the mystery of how life exists on Earth? What’s a Crash Course Lecture? While traditional Crash Courses on our channel break open an entire school subject, a Crash Course lecture tackles a single topic in-depth. Each lecture shares the perspective of a scholar, journalist, or thinker. This longer-form video pairs great with our full series on Geology Introduction: Cosmic Messengers 00:00 Chapter 1: The Adventure Begins 1:18 Chapter 2: Stones Falling from the Sky 3:41 Chapter 3: A Scientific Impossibility 7:24 Chapter 4: Life's Mysterious Origins 11:41 Chapter 5: The Crown Prince of Dust 15:44 Chapter 6: A Dynamic Universe 21:58 Chapter 7: Stardust in the City 25:06 Chapter 8: The Curious Amateur 28:46 Sources: https://docs.google.com/document/d/1YKVvUegfK_MXlz3cPGWdsSX5FFIVdn8lbxH3s8NUK9s/edit?usp=sharing A review of micrometeorite collections: https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2023.0195 *** Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourse Or support us directly: https://complexly.com/support Join our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/email Get our special Crash Course Educators newsletter: http://eepurl.com/iBgMhY Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Marcus Bruun, b.sav, Scezumin, NassauLinda, Chuck Smith, DexcilaDou, Johnathan Williams, Allison Wood, Katrix, Jason Terpstra, Jennifer Wiggins-Lyndall, Dalton Williams, Chelsea S, mfred, Ren, Michael Maher, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, ., Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, Diana, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristi Wallace Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, VI-Ed Podcast, Breanna Bosso, Matt Curls, Jennifer Killen, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder __ Want to find Crash Course elsewhere on the internet? Instagram - https://www.instagram.com/thecrashcourse/ Facebook - http://www.facebook.com/YouTubeCrashCourse Bluesky - https://bsky.app/profile/thecrashcourse.bsky.social CC Kids: http://www.youtube.com/crashcoursekids