https://www.livescience.com/56886-arrival-movie-alien-contact-protocol.html
https://www.space.com/39325-us-government-ufo-program-legacy.html
https://voyager.jpl.nasa.gov/golden-record/
https://en.wikipedia.org/wiki/Potential_cultural_impact_of_extraterrestrial_contact
https://en.wikipedia.org/wiki/Voyager_Golden_Record
https://en.wikipedia.org/wiki/Contents_of_the_Voyager_Golden_Record
https://www.space.com/40435-finding-aliens-humanity-reaction.html
https://en.wikipedia.org/wiki/%CA%BBOumuamua
https://www.space.com/2750-contact-signal.html
https://en.wikipedia.org/wiki/Project_Cyclops
https://www.smithsonianmag.com/science-nature/the-top-10-greatest-survivors-of-evolution-118143319/
https://en.wikipedia.org/wiki/Flatwoods_monster