Sign in to confirm you’re not a bot
This helps protect our community. Learn more

High Mass Stars: Crash Course Astronomy #31

CrashCourse
16.3M subscribers
<__slot-el>
<__slot-el>
2M views 9 years ago
Massive stars fuse heavier elements in their cores than lower-mass stars. This leads to the creation of heavier elements up to iron. Iron robs critical energy from the core, causing it to collapse. The shock wave, together with a huge swarm of neutrinos, blasts through the star’s outer layers, causing it to explode. The resulting supernova creates even more heavy elements, scattering them through space. Also, happily, we’re in no danger from a nearby supernova. Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crash... -- Chapters: Introduction: High Mass Stars 00:00 Core Fusion Creates Heavier Elements 0:51 Other Stages of High Mass Stars 2:22 Silicone & Iron Fusion 3:43 Core Collapse 6:20 Supernova Remnants 8:22 Explosive Nucleosynthesis 9:50 Review 11:04 -- PBS Digital Studios:    / pbsdigitalstudios   Follow Phil on Twitter:   / badastronomer   Want to find Crash Course elsewhere on the inter …...more
...more
Crash Course Composition Notebooks - 3 Pack
$10.00
Complexly Store
This set of 3 composition notebooks is a great way for you to continue your journey towards being a lifelong learner, as well as a great way to support Crash Course! 100 pages each, college ruled, featuring interior artwork, diagrams, and facts only Crash Course can provide!
Shop
Complexly Store
2025 Complexly Calendar
$5.00
Complexly Store
This year’s calendar celebrates a quarter century of progress, and it is a collaboration between all of your favorite Complexly YouTube channels! Available now!
Shop
Complexly Store
Crash Course - Lifelong Learner Tee
$32.00
Complexly Store
I found myself surrounded by people who celebrated intellectualism and engagement, and who thought that my ironic oh-so-cool disengagement wasn’t clever, or funny. It was a simple and unspectacular response to very complicated and compelling problems. And so I started to learn, because learning was cool. - John Green
Shop
Complexly Store
Crash Course Pods: Universe - Polo Hat
Limited stock
Complexly Store
Dr. Katie Mack, a theoretical astrophysicist, walks #1 New York Times bestselling author John Green through the history of the entire universe - including the parts that haven’t been written yet. Watching the video for this podcast, you may notice a couple of glowing stars that represent each of our hosts. We loved how those stars represented our show so much, we embroidered them on an everyday dad-hat. Now you can contemplate the very nature of existence, take comfort in our relatively insignificant place in our universe, and look sharp-as-heck in the process. DETAILS Low profile "dad-hat" 100% cotton Black with white embroidery One size fits most.
Shop
Complexly Store
Crash Course Animal Cell Poster
$20.00
Complexly Store
The cell is the basic unit of life--and it's one busy place! This poster takes you on a tour of an animal cell, from its protein-studded cell membrane to its hard-working ribosomes. It includes facts about some of the most incredible animals around and key scientific leaps that have advanced our knowledge of cells. DETAILS 18"x24" Portrait Print 100lb Semi Gloss paper Artwork by Thought Cafe for Crash Course
Shop
Complexly Store
Crash Course Plant Cell Poster
$20.00
Complexly Store
Journey into the gravity-defying, sunlight-harvesting world of a plant cell. This poster takes you on a tour of what's beneath the cell wall, teaches you amazing plant facts, and introduces you to key leaps in our understanding of the basic unit of life. DETAILS 18"x24" Portrait Print 100lb Semi Gloss paper Artwork by Thought Cafe for Crash Course
Shop
Complexly Store
High Mass Stars: Crash Course Astronomy #31
28KLikes
2,058,445Views
2015Sep 10
Massive stars fuse heavier elements in their cores than lower-mass stars. This leads to the creation of heavier elements up to iron. Iron robs critical energy from the core, causing it to collapse. The shock wave, together with a huge swarm of neutrinos, blasts through the star’s outer layers, causing it to explode. The resulting supernova creates even more heavy elements, scattering them through space. Also, happily, we’re in no danger from a nearby supernova. Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crash... -- Chapters: Introduction: High Mass Stars 00:00 Core Fusion Creates Heavier Elements 0:51 Other Stages of High Mass Stars 2:22 Silicone & Iron Fusion 3:43 Core Collapse 6:20 Supernova Remnants 8:22 Explosive Nucleosynthesis 9:50 Review 11:04 -- PBS Digital Studios:    / pbsdigitalstudios   Follow Phil on Twitter:   / badastronomer   Want to find Crash Course elsewhere on the internet? Facebook -   / youtubecrashcourse   Twitter -   / thecrashcourse   Tumblr -   / thecrashcourse   Support CrashCourse on Patreon:   / crashcourse   -- PHOTOS/VIDEOS Blowing Bubbles http://chandra.harvard.edu/resources/... [credit: NASA/CXC/April Jubett] The Sizes of Stars http://www.eso.org/public/images/eso1... [credit: ESO/M. Kornmesser] Red giants https://commons.wikimedia.org/wiki/Fi... [credit: Wikimedia Commons] Alpha Orionis http://imgsrc.hubblesite.org/hu/db/im... [credit: A. Dupree (CfA), NASA, ESA] Sun and VY Canis Majoris https://commons.wikimedia.org/wiki/Fi... [credit: Wikimedia Commons] Witch Head Nebula and Rigel http://www.deepskycolors.com/archive/... [credit: Rogelio Bernal Andreo] Layers of a massive star https://en.wikipedia.org/wiki/User:FT... [credit: Wikimedia Commons] NASA's Swift Reveals New Phenomenon in a Neutron Star http://www.nasa.gov/mission_pages/swi... [credit: NASA's Goddard Space Flight Center] What is a black hole? http://www.nasa.gov/audience/forstude... [credit: NASA/CXC/M.Weiss] The Death of Stars http://www.spacetelescope.org/videos/... [credit: ESA/Hubble] Giant Mosaic of the Crab Nebula http://www.nasa.gov/multimedia/imageg... [credit: NASA, ESA, J. Hester (Arizona State University)] Hubble and Chandra spot a celestial bauble http://www.spacetelescope.org/images/... [credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), and NASA/CXC/SAO/J. Hughes] Vela Supernova Remnant http://www.glitteringlights.com/Image... [credit: Marco Lorenzi] Spica [credit: Phil Plait] Cassiopeia A https://en.wikipedia.org/wiki/Cassiop... [credit: Oliver Krause (Steward Observatory) George H. Rieke (Steward Observatory) Stephan M. Birkmann (Max-Planck-Institut fur Astronomie) Emeric Le Floc'h (Steward Observatory) Karl D. Gordon (Steward Observatory) Eiichi Egami (Steward Observatory) John Bieging (Steward Observatory) John P. Hughes (Rutgers University) Erick Young (Steward Observatory) Joannah L. Hinz (Steward Observatory) Sascha P. Quanz (Max-Planck-Institut fur Astronomie) Dean C. Hines (Space Science Institute)] Sloshing Supernova http://svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA's Goddard Space Flight Center Video and images courtesy of NASA/JPL-Caltech] Star Burst http://svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA's Goddard Space Flight Center Video courtesy of ESA/Hubble/L. Calcada]

Follow along using the transcript.

CrashCourse

16.3M subscribers