http://nymag.com/selectall/2018/03/13-reasons-to-believe-aliens-are-real.html
https://www.express.co.uk/news/weird/952299/ancient-alien-proof-Earth-UFO-cave-drawings
https://io9.gizmodo.com/who-built-these-structures-could-it-be-aliens-1276521709
https://www.nationalgeographic.com/travel/travel-interests/arts-and-culture/ancient-sites-built-by-aliens/


10  King Pacal’s Sarcophagus
https://www.ancient-code.com/the-mystery-of-king-pakal-did-he-lift-off-to-the-stars/
http://www.crystalinks.com/pakalbreathingintheuniverse.html


9   HD164595’s Strong Message
https://gizmodo.com/what-that-strong-signal-from-a-nearby-sunlike-star-real-1785944619
https://www.independent.co.uk/news/science/aliens-might-have-sent-a-strong-message-from-deep-in-space-some-scientists-claim-a7216041.html


8   Murals of Charama
https://www.dailystar.co.uk/news/weird-news/472750/nasa-investigate-Charama-cave-paintings-india-aliens-ufo-visited-earth
https://www.express.co.uk/news/weird/918866/ANCIENT-ALIENS-NASA-investigate-10-000-year-old-rock-paintings-UFOs-aliens


7   The Glorification of the Eucharist
https://www.strangerdimensions.com/2014/09/04/glorification-eucharist-evidence-ancient-aliens-time-travel/


6   The Summer’s Triumph Tapestry
https://www.ancient-origins.net/unexplained-phenomena/unidentified-flying-objects-sky-summer-s-tapestry-001118


5   Betz Mystery Sphere
https://mysteriousuniverse.org/2012/04/the-betz-mystery-sphere-alien-artifact-or-doomsday-device/


4   The Stone Head of Guatemala
https://www.ancient-origins.net/ancient-places-americas/stone-head-guatemala-history-wants-forget-001104
http://ufothetruthisoutthere.blogspot.com/2014/05/the-mysterious-stone-head-of-guatemala.html


3   Fast Radio Bursts
https://en.wikipedia.org/wiki/Fast_radio_burst
https://phys.org/news/2018-04-fast-radio.html
https://www.smithsonianmag.com/smart-news/astronomers-are-getting-closer-understanding-mysterious-fast-radio-bursts-space-180967807/


2   The Face on Mars
https://en.wikipedia.org/wiki/Cydonia_(region_of_Mars)
https://www.cnet.com/news/the-face-of-mars-a-martian-mystery-turns-40/


1   Crop Circles
https://www.livescience.com/26540-crop-circles.html
https://en.wikipedia.org/wiki/Crop_circle