Existence of non-human intelligent beings

The existence of non-human intelligent beings is a controversial subject. Researchers and enthusiasts alike have debated the possibility of intelligent life existing elsewhere in the universe. This topic holds significant interest for fields such as astrobiology, astronomy, and philosophy.

Empirical evidence is widely believed to be lacking. Various claims and supposed encounters have been documented, but none have been publicly scientifically validated to a degree that would satisfy the broader scientific community.