The Number of Planets
https://www.theguardian.com/science/2013/nov/04/planets-galaxy-life-kepler
https://arstechnica.com/science/2016/05/number-of-potentially-habitable-planets-in-our-galaxy-tens-of-billions/
https://en.wikipedia.org/wiki/Exoplanet

The Age of the Universe
https://en.wikipedia.org/wiki/Age_of_the_universe
https://www.space.com/24054-how-old-is-the-universe.html
https://www.space.com/24496-universe-alien-life-habitability-big-bang.html
The Theory of Panspermia
https://en.wikipedia.org/wiki/Panspermia
http://www.panspermia-theory.com/
https://www.space.com/22880-life-from-space-panspermia-possibility.html
Thermal Vents
http://www.popularmechanics.com/space/solar-system/news/a26044/cassini-evidence-hydrothermal-vents-enceladus/
https://science.nasa.gov/science-news/science-at-nasa/2001/ast13apr_1
https://en.wikipedia.org/wiki/Hydrothermal_vent#Hydrothermal_origin_of_life

The Fertile Solar System
https://spaceflightnow.com/2017/04/13/new-discoveries-raise-prospects-for-life-on-moons-of-jupiter-and-saturn/
https://www.space.com/15716-alien-life-search-solar-system.html
http://www.independent.co.uk/news/science/aliens-enceladus-life-saturn-moon-cassini-mission-nasa-announcement-today-what-does-it-mean-a7681831.html
The Resilence of Life
https://en.wikipedia.org/wiki/Tardigrade
https://en.wikipedia.org/wiki/Extremophile
https://www.livescience.com/57985-tardigrade-facts.html
The Building Blocks of Life
https://www.livescience.com/26212-life-precursor-chemical-found.html
http://www.physicsoftheuniverse.com/topics_life_early.html
https://en.wikipedia.org/wiki/Hypothetical_types_of_biochemistry

Natural Selection
http://www.iflscience.com/space/aliens-probably-went-through-natural-selection-just-like-us/
https://science.howstuffworks.com/space/aliens-ufos/aliens-might-look-and-think-like-us-courtesy-natural-selection.htm
https://www.huffingtonpost.com/chris-impey/humans-living-in-space_b_7519962.html

The Spreading of Technology
https://en.wikipedia.org/wiki/Self-replicating_spacecraft
https://www.scoop.it/t/a-global-brain/p/1885775993/2012/06/02/man-becomes-the-sex-organs-of-the-machine-world-marshall-mcluhan-s-understanding-media
The Anthropic Principle
https://online.science.psu.edu/astro140_fawd001/node/11770
http://www.hawking.org.uk/life-in-the-universe.html
https://www.scientificamerican.com/article/a-new-physics-theory-of-life/
https://www.quantamagazine.org/a-new-thermodynamics-theory-of-the-origin-of-life-20140122/