2159 (MMCLIX) was a common year starting on Monday of the Gregorian calendar (dominical letter G), the 2159th year of the Common Era (CE) and Anno Domini (AD) designations, the 159th year of the 3rd millennium, the 59th year of the 22nd century, and the 10th year of the 2150s decade.

Events

• Terraforming efforts begin on Acheron (LV-426).

• The mining team from the DSMO Marion discover Xenomorphs and a derelict alien spacecraft deep underground on LV-178.

• The Xenomorphs spread to the Marion in orbit, and an accident leaves the ship crippled and in a decaying orbit.

• Ash directs Ellen Ripley to the Marion aboard the Narcissus in response to the ship's distress call.

• After recovering a necessary fuel cell from LV-178, wiping Ash's AI and having her memory of the events erased, Ripley leaves the Marion aboard the Narcissus while Chris Hooper escapes aboard a shuttle.

• Sophia Tamarkina, a former WY mechanical engineer and now a UPP People's Hero, created the DKT-59 Misha.

Deaths

• Gemma Keech
• Lucy Jordan
• Cornell
• Vic Jones
• Welford
• Powell
• Garcia
• Josh Baxter
• Lachance
• Karen Sneddon
• Kasyanov
• Ash (wiped from the narccisus computer)

Appearances

• Alien: Out of the Shadows
• Aliens: Fireteam Elite (mentioned only)