Nebulae 
Nebulae
by Crash Course
Video Lecture 36 of 47
Not yet rated
Views: 639
Date Added: August 11, 2016

Lecture Description

Astronomers study a lot of gorgeous things, but nebulae might be the most breathtakingly beautiful of them all. Nebulae are clouds of gas and dust in space. They can glow on their own or reflect light from nearby stars. When they glow it’s usually predominantly red from hydrogen and green from oxygen, and when they reflect and scatter light it’s from massive hot stars, so they look blue. Stars are born in some nebulae, and create new ones as they die. Some nebulae are small and dense, others can be dozens or hundreds of light years across.

Crash Course Astronomy Poster: store.dftba.com/products/crashcourse-astronomy-poster

--

Table of Contents
Nebulae Are Clouds of Gas And/Or Dust 0:42
They Can Emit Light Or Reflect It 1:20
Elements Change Their Glow 3:31
Nebulae Can Create Stars 5:28

--

PBS Digital Studios: youtube.com/pbsdigitalstudios

Follow Phil on Twitter: twitter.com/badastronomer

Want to find Crash Course elsewhere on the internet?
Facebook - www.facebook.com/YouTubeCrashCourse
Twitter - www.twitter.com/TheCrashCourse
Tumblr - thecrashcourse.tumblr.com
Support CrashCourse on Patreon: www.patreon.com/crashcourse

--

PHOTOS/VIDEOS
Saturn www.flickr.com/photos/badastronomy/10328043663/sizes/o/in/photostream/ [credit: Photo by NASA / JPL / Space Science Institute / Gordan Ugarkovic]
Carina Nebula www.spacetelescope.org/news/heic0707/ [credit: NASA, ESA, N. Smith (University of California, Berkeley), and The Hubble Heritage Team (STScI/AURA)]
Crab Nebula sci.esa.int/herschel/53338-herschel-and-hubble-composite-image-of-the-crab-nebula/ [credit: ESA/Herschel/PACS/MESS Key Programme Supernova Remnant Team; NASA, ESA and Allison Loll/Jeff Hester (Arizona State University)]
Carina Jets www.spacetelescope.org/images/heic1007a/ [credit: NASA, ESA, M. Livio and the Hubble 20th Anniversary Team (STScI)]
The Twin Jet Nebula www.spacetelescope.org/images/heic1518a/ [credit: ESA/Hubble & NASA]
Tycho's Supernova Remnant chandra.harvard.edu/photo/2011/tycho/ [credit: X-ray: NASA/CXC/Rutgers/K.Eriksen et al.; Optical: DSS]
Ring Nebula's True Shape hubblesite.org/newscenter/archive/releases/2013/13/image/a/ [credit: NASA, ESA, C.R. O'Dell (Vanderbilt University), and D. Thompson (Large Binocular Telescope Observatory)]
3D animation of the Orion nebula www.spacetelescope.org/videos/astro_bo/ [credit: ESO/M. Kornmesser]
Stardust stardust.jpl.nasa.gov/images/science/idp-m.jpg [credit: NASA]
From the Pleiades to the Hyades www.deepskycolors.com/archive/2011/11/06/from-the-Pleiades-to-the-Hyades.html [credit: Rogelio Bernal Andreo]
How to Become a Star www.eso.org/public/images/eso0102a/ [credit: ESO]
The Orion Nebula www.eso.org/public/images/eso1103a/ [credit: ESO/Igor Chekalin]
Trapezium Cluster in the Orion Nebula www.spacetelescope.org/images/opo0019b/ [credit: K.L. Luhman (Harvard-Smithsonian Center for Astrophysics, Cambridge, Mass.); and G. Schneider, E. Young, G. Rieke, A. Cotera, H. Chen, M. Rieke, R. Thompson (Steward Observatory, University of Arizona, Tucson, Ariz.) and NASA/ESA]
PIA08656 www.jpl.nasa.gov/spaceimages/images/largesize/PIA08656_hires.jpg [credit: NASA/JPL-Caltech/IRAS/H. McCallon]
Edge-On Protoplanetary Disc in the Orion Nebula www.spacetelescope.org/images/opo9545h/ [credit: Mark McCaughrean (Max-Planck-Institute for Astronomy), C. Robert O'Dell (Rice University), and NASA/ESA]
Hubble's sharpest image of the Orion Nebula with proplyd highlights www.spacetelescope.org/images/heic0917ab/ [credit: NASA, ESA, M. Robberto (Space Telescope Science Institute/ESA), the Hubble Space Telescope Orion Treasury Project Team and L. Ricci (ESO)]
Young Stellar Disks in Infrared www.spacetelescope.org/images/opo9905b/ [credit: D. Padgett (IPAC/Caltech), W. Brandner (IPAC), K. Stapelfeldt (JPL) and NASA/ESA]
The Eagle Nebula, M16 www.noao.edu/image_gallery/html/im0725.html [credit: T.A.Rector (NRAO/AUI/NSF and NOAO/AURA/NSF) and B.A.Wolpa (NOAO/AURA/NSF)]
Pillars of Creation hubblesite.org/newscenter/archive/releases/2015/01/image/e/warn/ [credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)]
Planetary Nebula HFG1 www.noao.edu/image_gallery/html/im1110.html [credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)]
Zooming in on the Horsehead Nebula www.spacetelescope.org/videos/heic1307c/ [credit: NASA, ESA, and G. Bacon (STScI); ESO]
Orion, from Head to Toes www.deepskycolors.com/archive/2010/10/22/orion-from-Head-to-Toes.html [credit: Rogelio Andreo Bernal]
Sifting through Dust near Orion’s Belt (mouseover comparison) www.eso.org/public/images/comparisons/eso1219a/ [credit: ESO/APEX (MPIfR/ESO/OSO)/T. Stanke et al./Igor Chekalin/Digitized Sky Survey 2]

Course Index

Course Description

In this Crash Course series, marvel at the wonders of astronomy with your host for this intergalactic adventure, the Bad Astronomer himself -- Phil Plait. In just 40 short lessons, you will learn the basics of the oldest science known to humanity.

Be sure to check out links to relevant Photos in the description for each video.

Comments

There are no comments. Be the first to post one.
  Post comment as a guest user.
Click to login or register:
Your name:
Your email:
(will not appear)
Your comment:
(max. 1000 characters)
Are you human? (Sorry)