USM Auriga

From Xenopedia

The USM Auriga was the United Systems Military vessel used to conduct cloning experimentation on Lieutenant Ellen Ripley in the late twenty-fourth century. The USM Auriga was 12,000 feet in length and maintained a constant crew of forty-two enlisted USM marines and seven science officers. Following the escape of several Xenomorph specimens the crew of the USM Auriga abandoned the vessel in its EEVs. The USM Auriga then autopiloted itself to Earth and exploded high in the atmosphere above Africa.