| Name |
Description |
| MacPherson Nebula [1] |
A supernova remnant located approximately twelve hours away from the Cordannas system at warp 9. The USS Enterprise-D used detonated a modified photon torpedo in the MacPherson nebula to produce a large quantity of vertion particles in 2370. [1] |
| McAllister C-5 Nebula [2] |
A protostellar nebula located within Cardassian space some 7 light years from the border and 11 light years from Minos Korva. The particle flux inside the nebula is so severe that ships cannot remain within for more than 72 hours. In 2369 the Cardassians hid a fleet within the McAllister nebula in readiness for an attack on Minos Korva. Fortunately Captain Jellico was able to uncover the plot after detecting slight traces of damage on a Cardassian ship, and subsequently mined the nebula to force the withdrawal of the fleet. [2] |
| Mutara Nebula [3] |
A nebula located in the Mutara sector, close to the Regula planetoid. It has sufficient static discharge and gas to prevent shields and tactical display systems from functioning. In 2285 the Mutara nebula was largely destroyed when the Genesis Device was detonated within it by Khan Noonien Singh. The matter of the nebula was converted into the Genesis planet. [3] |
| Mar Oscura nebula [4] |
A dark matter nebula explored by the Enterprise-D in 2367. Fragments of the dark matter within the nebula caused parts of the ship to phase as they passed through it. [4] |
