https://www.alislam.org/library/books/revelation/part_4_section_7.html
https://www.archbalt.org/vatican-astronomer-says-if-aliens-exist-they-may-not-need-redemption/
https://www.huffpost.com/entry/misconceptions-nasa_b_3561205?
https://ourworldindata.org/military-spending#historical-perspective