![Dark matter asteroid](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/f/f3/Dark_matter_asteroid.jpg/revision/latest/scale-to-width-down/180?cb=20070722215731&path-prefix=en)
A dark matter asteroid heads for a graviton ellipse
![Dark matter asteroid graphic](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/d/da/Dark_matter_asteroid_graphic.jpg/revision/latest/scale-to-width-down/180?cb=20190107000058&path-prefix=en)
A display showing a dark matter asteroid
A dark matter asteroid was a celestial object composed of dark matter, that emitted electromagnetic radiation.
In 2376, a graviton ellipse being investigated by the USS Voyager was attracted to a dark matter asteroid. The two anomalies collided, causing severe gravimetric distortions inside the ellipse that caused damage to the Delta Flyer. (VOY: "One Small Step")