Alien Life
Another one of the great mysteries in the universe is about life on other planets. Sure, there are plenty of people who claim to have seen aliens, but there’s no definitive proof that they exist. However, in 2021, the Pentagon officially released footage of what they claimed as “unidentified aerial phenomena.”
Even so, this doesn’t necessarily mean they’re confirming aliens exist – just that there is spacecraft out there that we can’t classify at the moment. If aliens did exist, they’d likely be so different from humans that we’d have a hard time understanding them. For one, they probably wouldn’t have legs!