Malon Prime

From Memory Alpha, the free Star Trek reference

Malon Prime is a planet in the Delta Quadrant and homeworld of the Malon species. It is said to be one of the most beautiful planets in the quadrant, despite the fact that Malon industry produces massive quantities of antimatter waste. This is made possible by waste export vessels, that transport the hazardous waste far from Malon home space. (VOY: "Juggernaut")