Martian Chronicles

A summary of Martian Chronicles by Ray Bradbury:

How could we believe our senses? How could you prove what you see or hear is real or just a reflection of your imagination or a past memory? "You are so certain. How can you prove who is from the Past, who from the Future?", Tomas Gomez was asked by a Martian in the Night Meeting. We face these questions throughout the magnificent stories of "Martian Chronicles".
The book starts in February 1999 with a dream of Ylla, a Martian woman. The dream is about a man coming from the third planet, Earth. The man of the dream, Captain Nathaniel York, informs Ylla about the time and the place his ship lands: in the afternoon, Green Valley. The idea of the presence of a blue-eyed, "strange, yet until handsome" man, does not leave Ylla's jealous husband comfortable. He disappears from the house in the afternoon, and you hear the sound of a shot, "very clearly, sharply". Wasn't the man just a dream?
Then the second expedition arrives in August 1999: Captain Williams with three crew men. Struggling to inform Martians about their cross-planet journey, the Earth men found themselves in a Martian insane asylum. Observing a woman melting into a pillar or a man producing little blue naked women, the captain doubts they could ever prove their sanity: "If hallucinations can appear this 'real' to us, [...] how natural if normal Martians think we produce our rocket ship with our minds". Indeed, the captain was congratulated for being a psychotic genius and was sadly shot.
The question to reality gets our most attention in the third expedition in April 2000, when we find Captain John Black, in the bed lying down beside his dead beloved brother, deeply overwhelmed with the daring idea of "Telepathy, hypnosis, memory, imagination", and then the loud shout of the captain, and then silence.
How could you believe what your eyes see is real?!