Proper noun
Synonym of Great Galactic Ghoul (relating to Mars probes)
DR 6, a nebula in the Milky Way galaxy, resembling a human face.
Source: en.wiktionary.orgSuch a high failure rate can be attributed to the complexity and large number of variables involved in an interplanetary journey, and has led researchers to jokingly speak of The Great Galactic Ghoul citation which subsists on a diet of Mars probes. Source: Internet