The CMS Arclight was the largest interstellar ship ever created. Built as a battleship to maintain the peace between Earth and Alpha Prime, it was powered by two massive crystite reactors. These were necessary to move the entire ship via arcfolding.

The Arclight crashed back down to Earth During it's maiden voyage to Alpha Prime. The CMS Arclight's captain Nostromo reported that the jump had failed and they were still in orbit but the craft's altitude was decaying rapidly. Accord control told him to stand by and prepare for an evacuation. Nostromo told them there was no time and Dr Mastishiba told accord control that the loss of orbit was ire never even leaving earth and causing the supposed melding energy storm. [1]