This question will be controversial, so I want to start out by saying that I am not advocating any sort of conspiracy. I'm merely acknolwedging the fact that there are numerous claims that some astronauts have said they have seen UFOs or some other sign of extraterrestrial intelligence (ETI). Some of these claims are dubious, whereas others seem to have some substance.
There are five types of purported encounters:
- UFO sightings
- Extraterrestrial artifacts
- ETI sightings
Please be specific about what type of encounter happened.
A good answer should:
- list astronaut/s by name,
- detail what occured in the encounter, and
- provide strong evidence for the account.
Many "documentaries" and websites have quote mined things that various astronauts have said, so be careful to bring the full context to bear.
(I would like to count all who have been to space, regardless of nationality or whether or not they were pilots, etc. But please provide detail on each astronaut's nationality and qualifications.)