7. The Black Knight Satellite
Source: disinfo
What’s more mysterious in this photo is that this space object has already orbited Earth for 13,000 years. No one knows its purpose! Even the astronauts don’t know how this object works!
These are the 10 strange photos you can’t explain (even the researchers can’t explain!). Now you know that this world may be beautiful and perfect, but there are more mysteries that mankind needs to solve.