Meteors 
Meteors
by Crash Course
Video Lecture 23 of 47
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Views: 707
Date Added: August 11, 2016

Lecture Description

Today Phil helps keep you from ticking off an astronomer in your life by making sure you know the difference between a meteor, meteorite, and meteoroid. When the Earth plows through the stream emitted by a comet we get a meteor shower. Meteors burn up about 100 km above the Earth, but some survive to hit the ground. Most of these meteorites are rocky, some are metallic, and a few are a mix of the two. Very big meteorites can be a very big problem, but there are plans in the works to prevent us from going the way of the dinosaurs.

Meteorite Links:
Aerolite Meteorites, Inc.: www.aerolite.org/
Big Kahuna Meteorites: bigkahuna-meteorites.com/
Arizona Skies Meteorites: www.arizonaskiesmeteorites.com/

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Table of Contents
What Meteors Are 0:59
Meteor Shower 4:22
What Meteors Are Made Of 7:10
Very Big Meteorites Can Be a Very Big Problem 8:36

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PBS Digital Studios: youtube.com/pbsdigitalstudios

Follow Phil on Twitter: twitter.com/badastronomer

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PHOTOS/VIDEOS
Shooting star dakotalapse.com/wp-content/uploads/2013/02/IMG_5555-reboot1.jpg [credit: Randy Halverson / Dakotalapse.com]
Cosmic Fireball Falling Over ALMA www.eso.org/public/usa/images/potw1414a/ [credit: ESO / Christoph Malin]
Meteor light sphotos-b.xx.fbcdn.net/hphotos-ash3/704204_406950402710734_1157020008_o.jpg [credit: Randy Halverson / Dakotalapse.com]
Bolide 10/16/14 www.youtube.com/watch?v=GZXqmPhd8AQ [credit: reddit user -545-]
Meteor Video svs.gsfc.nasa.gov/vis/a010000/a010700/a010747/10747_Swift_Asteroid_H264_Good_1280x720_29.97.mov [credit: NASA/Goddard Space Flight Center]
Orbit Video svs.gsfc.nasa.gov/vis/a000000/a004100/a004159/209PLINEAR-swingAround.slate.HD1080.mp4 [credit: NASA's Scientific Visualization Studio]
When Gemini Sends Stars to Paranal twanight.org/newTWAN/photos.asp?ID=3003955 [credit: Stephane Guisard]
Perseid below space station apod.nasa.gov/apod/image/1208/iss028e024847perseid.jpg [credit: NASA]
Geminids shower www.slate.com/blogs/bad_astronomy/2014/12/15/geminids_meteor_shower_photo.html [credit: Neil Zeller]
Cygnus Reentry www.slate.com/blogs/bad_astronomy/2014/08/18/fireball_astronauts_photograph_cygnus_resupply_ship_burning_up.html [credit: ESA/NASA]
Stony meteorite en.wikipedia.org/wiki/File:AllendeMeteorite.jpg [credit: Wikimedia Commons, H. Raab]
Iron meteorite commons.wikimedia.org/wiki/File:Nickel-iron_meteorite_fragment,_5.5_billion_years_old,_found_near_Flagstaff_AZ_-_Franklin_Institute_-_DSC06707.JPG [credit: Wikimedia Commons, Daderot]
Stony iron meteorite en.wikipedia.org/wiki/Pallasite#/media/File:Bernham_meteorite_sept_2010.JPG [credit: Wikimedia Commons, Supportstorm]
Chondrites commons.wikimedia.org/wiki/File:Allende_meteorite,_carbonaceous_chondrite_(14787764392).jpg [credit: Wikimedia Commons, James St. John]
Pallasite www.flickr.com/photos/jsjgeology/14608975850/ [credit: James St. John]
Aftermath of Chelyabinsk Meteor www.youtube.com/watch?v=Q9KwK0izt5c [credit: NASA]
Near-Earth asteroid 2013 www.youtube.com/watch?v=RmPsQdEHyPU [credit: Gianluca Masi, permission granted by author]
Dinosaur drawing courtesy of Zach Weiner of Saturday Morning Breakfast Cereal www.smbc-comics.com/?id=1535

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.

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