1973, Larry Niven: "The Hole Man" https://en.wikipedia.org/wiki/The_Hole_Man https://en.wikipedia.org/wiki/The_Hole_Man: "In this story, a team of explorers an

1973, Larry Niven: "The Hole Man" https://en.wikipedia.org/wiki/The_Hole_Man https://en.wikipedia.org/wiki/The_Hole_Man: "In this story, a team of explorers and scientists on Mars encounter an alien base, in which there is a still-functional communication device. One scientist believes that at the center of the device is a tiny black hole.." (Niven didn't know yet about Hawking radiation discovered next year..)