Are ghosts real?

https://www.livescience.com/26697-are-ghosts-real.html

Scientific explanation?

https://www.express.co.uk/news/science/978258/are-ghosts-real-truth-proof-science-answer-goldsmiths-university

The Wikipedia article

https://en.wikipedia.org/wiki/Ghost

Truth about death.

https://www.truthaboutdeath.com/blog/id/1586/are-ghosts-real

Ghost photographs

https://www.pocket-lint.com/cameras/news/141224-the-most-famous-ghost-photographs-ever-taken

Ghosts and gravestones

https://www.ghostsandgravestones.com/believe-in-ghosts

Sun article

https://www.thesun.co.uk/news/4051536/reasons-why-people-see-ghosts-paranormal-activity-experts/