"The word “apocalypse” comes from the Greek word apocalupsis which means “revealing, disclosure, to take off the cover.”"
https://www.gotquestions.org/apocalypse.html
"An apocalypse (Ancient Greek: ἀποκάλυψις apokálypsis, from off: ἀπό and cover: καλύπτω, literally meaning "an uncovering") is a disclosure or revelation of great knowledge. In religious concepts an apocalypse usually discloses something very important that was hidden or provides what Bart Ehrman has termed, "A vision of heavenly secrets that can make sense of earthly realities"."
https://en.wikipedia.org/wiki/Apocalypse
"one of the Jewish and Christian writings of 200 b.c. to a.d. 150 marked by pseudonymity, symbolic imagery, and the expectation of an imminent cosmic cataclysm in which God destroys the ruling powers of evil and raises the righteous to life in a messianic kingdom"
https://www.merriam-webster.com/dictionary/apocalypse
"John Ratcliffe, the former director of national intelligence, said on Friday that military pilots and satellites have been monitoring numerous UFO sightings."
https://nymag.com/intelligencer/2021/03/pentagon-report-details-difficult-to-explain-ufo-sightings.html
"Describing a bizarre incident in the Bermuda Triangle in 2009, former nuclear submarine commander Yury Beketov said: “We repeatedly observed that the instruments detected the movements of material objects at unimaginable speed, around 230 knots (400 km per hour).
"It’s hard to reach that speed on the surface – only in the air [is it possible]… The beings that created those material objects significantly exceed us in development.”"
https://www.thesun.co.uk/news/12879069/russian-submarines-battle-aliens-oceans-kremlin-documents/
"In March, astrophysicist Eric W. Davis, who spent years working as a consultant for the Pentagon UFO program and is now a defense contractor, gave a classified briefing to the Defense Department on what he called “off-world vehicles not made on this earth.” In other words, spaceships."
https://nymag.com/intelligencer/2020/07/ufo-report-pentagon-has-off-world-vehicles-not-from-earth.html
"The US government has key evidence of possible close encounters with UFOs but has been hiding it for years, according to former Senate Majority Leader Harry Reid.
The 80-year-old politician claimed in a new documentary, “The Phenomenon,” that “there’s more than one up there” and even believes they may have interfered with American weapons."
https://nypost.com/2020/10/13/harry-reid-claims-us-has-been-covering-up-ufo-evidence-for-years/
"Air traffic controllers in Siberia claim they were buzzed by a high-speed UFO with a female sounding alien who spoke in an unintelligible cat-like language"
https://www.dailymail.co.uk/news/article-1361878/Russian-flight-controllers-UFO-aliens-speak-cat-like-language.html
If we made contact with aliens, how would religions react?
https://www.bbc.com/future/article/20161215-if-we-made-contact-with-aliens-how-would-religions-react