UKAstroNut's video: The science behind The Martian

Stuck on Mars. With little food and reliant on machines to make oxygen and water, which could break at any time. Help is 140 million miles away. This is the plot of the latest sci-fi film The Martian. It has some really imaginative science in it, so let's take a simpler look at the science in The Martian. Twitter: https://twitter.com/UKAstroNut Facebook: https://www.facebook.com/UKAstroNut Website: http://www.ukastronut.co.uk Blog: http://ukastronutblog.blogspot.co.uk/ Image credits: "The Martian film poster" by Source. Licensed under Fair use via Wikipedia - https://en.wikipedia.org/wiki/File:The_Martian_film_poster.jpg #/media/File:The_Martian_film_poster.jpg "Water droplet blue bg05" by Taken byfir0002 | flagstaffotos.com.auCanon 20D + Tamron 28-75mm f/2.8 - Own work. Licensed under GFDL 1.2 via Commons - https://commons.wikimedia.org/wiki/File:Water_droplet_blue_bg05.jpg #/media/File:Water_droplet_blue_bg05.jpg "Good Food Display - NCI Visuals Online" by Unknown - This image was released by the National Cancer Institute, an agency part of the National Institutes of Health, with the ID 2397 (image) (next).This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information.English | Français | +/−. Licensed under Public Domain via Commons - https://commons.wikimedia.org/wiki/File:Good_Food_Display_-_NCI_Visuals_Online.jpg #/media/File:Good_Food_Display_-_NCI_Visuals_Online.jpg "PIA16460 Mars Atmosphere Gases 20121102" by Melikamp - http://photojournal.jpl.nasa.gov/catalog/PIA16460. Licensed under CC BY-SA 3.0 via Commons - https://commons.wikimedia.org/wiki/File:PIA16460_Mars_Atmosphere_Gases_20121102.svg #/media/File:PIA16460_Mars_Atmosphere_Gases_20121102.svg MOXIE - NASA "Sol454 Marte spirit" by NASA/JPL - http://marsrovers.jpl.nasa.gov/gallery/press/spirit/20050420a.html. Licensed under Public Domain via Commons - https://commons.wikimedia.org/wiki/File:Sol454_Marte_spirit.jpg #/media/File:Sol454_Marte_spirit.jpg