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 device, possibly for communication with gravity wave oscillation. One scientist (who previously made a silly and potentially fatal mistake with his space suit) believes that at the center of the device is a micro black hole, but his superior does not believe him and ridicules him at every opportunity. Tension mounts as the superior claims to not believe such black holes even exist and gleefully teases the scientist's flustered attempts to explain such things. During a heated argument with his superior, the scientist evidently turns off a containment field, releasing the black hole downward. The hole drops right through the superior, killing him as it falls towards the center of the planet. At a group meeting the scientist claims to have done so accidentally, not understanding the alien mechanisms.
Later privately, the scientist defends himself against talk of murder with a most unusual murder weapon; several of the team including the superior had forcefully pronounced that the device could not possibly contain a black hole. Also that any conviction in a trial would require convincing the jury that such a thing could exist, that one was inside the machine, that the scientist understood the controls, that it was foreseeable that the black hole would be released and would harm the man, and intended murder. The story ends with scientist speculating the possibility whether the black hole will endanger the explorers as it consumes Mars, or whether danger will occur many years later, possibly still during the lifetime of the scientist.
- Strahan, Jonathan (March 30, 2009). "The All-Time Top 40: The Hole Man, Larry Niven". Retrieved 2020-07-10.