AFAIK the closest thing we have is the very recently released USS Nimitz incident: https://en.wikipedia.org/wiki/USS_Nimitz_UFO_incident https://en.wikipedia.o

AFAIK the closest thing we have is the very recently released USS Nimitz incident: https://en.wikipedia.org/wiki/USS_Nimitz_UFO_incident https://en.wikipedia.org/wiki/USS_Nimitz_UFO_incident And even this example is very very far from being enough evidence to believe extraterrestrial intelligent life has visited Earth.