Solaris

Stanislaw Lem

1970

Extraterrestrial beings > Fiction.
Human-alien encounters > Fiction.
Life on other planets > Fiction.
Outer space > Exploration / Fiction.

When Kris Kelvin was sent to Station Solaris he expected the usual hazards of galactic research-solitude, hardship, even death. What he did not expect was a haunting. For a strange simulacrum of his dead wife Rheya suddenly became his constant companion, the gift of Solaris' ruling intelligence, A SENTIENT OCEAN, whose vast mind and enigmatic personality was to try and trouble those humans who contacted it, sometimes to the point of suicide...

Berkley

https://catalog.hathitrust.org/Record/000171242

English

Aliens