Extraterrestrial Life
Channel: Astronomy with Mr Guerin
Date: 2022-07-28

Do aliens exist? How can we look for them, and where? And is it a good idea?

This video will tell you everything you need to answer these questions in EdExcel's Astronomy GCSE.

Download the slideshow:
https://drive.google.com/drive/folders/1v7n69srfzFmgYxF9Vct6FKp3r_ZRqFjx


Image credits:

Alien autopsy, Turlas5, wikimedia, CC BY-SA 4.0
https://commons.wikimedia.org/wiki/File:CZY_KOSMICI_ISTNIEJ%C4%84_.jpg

Little Green Man, LeCire, wikimedia, CC BY-SA 4.0
https://commons.wikimedia.org/wiki/File:Hombrecillo_verde.svg

Planets Everywhere, ESO/M. Kornmesser, eso.org, CC BY 4.0
http://www.eso.org/public/images/eso1204a/

HR 8799 Orbiting Exoplanets, Jason Wang (Caltech)/Christian Marois (NRC Herzberg), wikimedia, CC BY 3.0
https://commons.wikimedia.org/wiki/File:HR_8799_Orbiting_Exoplanets.gif

Planetary transit, Nikola Smolenski, wikimedia, CC BY-SA 3.0 (modified)
https://commons.wikimedia.org/wiki/File:Planetary_transit.svg

TRAPPIST-1, NASA/JPL-Caltech, nasa.gov, public domain
https://photojournal.jpl.nasa.gov/catalog/PIA22093

Radial velocity method, European Southern Observatory, eso.org, CC BY 4.0
https://www.eso.org/public/images/eso0722e

Flatwoods monster, Tim Bertelink, wikimedia, CC BY-SA 4.0
https://commons.wikimedia.org/wiki/File:Flatwoods_monster.png

DNA, Zephyris, wikimedia, CC BY-SA 3.0
https://commons.wikimedia.org/wiki/File:DNA_orbit_animated.gif

Atlantic Ocean, Tiago Fioreze, wikimedia, CC BY-SA 3.0
https://commons.wikimedia.org/wiki/File:Clouds_over_the_Atlantic_Ocean.jpg

Silurian, Steve Collis, wikimedia, CC BY 2.0
https://commons.wikimedia.org/wiki/File:Doctor_Who_Experience_(8105539492).jpg

Red-Yellow Ultraman, Tommy Wong, wikimedia, CC BY 2.0
https://commons.wikimedia.org/wiki/File:Red-Yellow_Ultraman_-_Soft-Hard_%22Long_Time_No_See%22_show_opening_(206612163).jpg

Habitable Zones of Different Stars, NASA/Kepler Mission/Dana Berry, nasa.gov, public domain
https://www.nasa.gov/ames/kepler/habitable-zones-of-different-stars

Anunnaki, Cosmo Gandi, wikimedia, CC0 1.0
https://commons.wikimedia.org/wiki/File:Anunnaki_by_Cosmo_Gandi.jpg

Titan, NASA, nasa.gov, public domain
http://photojournal.jpl.nasa.gov/catalog/PIA14602

Europa, NASA/JPL/DLR, nasa.gov, public domain
http://photojournal.jpl.nasa.gov/catalog/PIA00502

Enceladus, NASA/JPL-Caltech, nasa.gov, public domain
https://photojournal.jpl.nasa.gov/jpeg/PIA23175.jpg

Hopkinsville goblin, Tim Bertlink, wikimedia, CC BY-SA 4.0
https://commons.wikimedia.org/wiki/File:Hopkinsville_goblin.png

Grey Alien, LeCire, wikimedia, public domain
https://commons.wikimedia.org/wiki/File:Alienigena.jpg

Messier 51, NASA/JPL-Caltech, IPAC, nasa.gov, public domain
https://photojournal.jpl.nasa.gov/catalog/PIA23005

Alien abduction, Travis Walton, wikimedia, public domain
https://commons.wikimedia.org/wiki/File:Walton(reconstitution).png

Pioneer plaque, NASA Ames, nasa.gov, public domain
https://solarsystem.nasa.gov/resources/706/pioneer-plaque/

Arecibo message, Pengo, wikimedia, CC BY-SA 3.0
https://commons.wikimedia.org/wiki/File:Arecibo_message_bw.svg

Wow! Signal, Jerry R. Ehman, bigear.com, public domain
http://www.bigear.org/Wow30th/wow30th.htm

Dyson swarm, Kevin Gill, wikimedia, CC BY 2.0
https://commons.wikimedia.org/wiki/File:A_Dyson_Swarm_Superstructure_(21983905140).png

Stephen Hawking, John Cairns, wikimedia, CC BY 4.0
https://commons.wikimedia.org/wiki/File:Weston_Library_Opening_by_John_Cairns_20.3.15-139_(cropped,_Hawking).jpg

Carl Sagan, NASA JPL, wikimedia, public domain
https://commons.wikimedia.org/wiki/File:Carl_Sagan_Planetary_Society_cropped.png

Neil deGrasse Tyson, Bruce F Press, wikimedia, CC BY 3.0
https://commons.wikimedia.org/wiki/File:Neil_deGrasse_Tyson_at_Howard_University_September_28,_2010.jpg

Pope Francis, Korea.net / Korean Culture and Information Service  (Jeon Han), wikimedia, CC BY 2.0
https://commons.wikimedia.org/wiki/File:Pope_Francis_South_Korea_2014.png