About Aliens or Not

Aliens or Not weighs the evidence for aliens: ancient visitors, UFOs and UAP today, and life in the cosmos. We gather official sources, the best documented theories and the latest science, debunk what doesn't hold up and flag what is genuinely unexplained.

We're curious, not cynical. We would love the answer to be "aliens", and we set our tripwires in advance so we can't move the goalposts either way.

Each claim lists its main source and the date we checked it. The illustrations are original artwork made for this site. Videos are links to YouTube channels of the publishers named.

The site is independent and paid for by ads. Spotted a mistake or a new development? Tell us.