Blue Moon (spacecraft)

Blue Moon (MK2)

Artemis V concept of operations with Blue Moon
Manufacturer	Blue Origin
Country of origin	United States
Operator	NASA, Blue Origin
Applications	Crewed and robotic reusable lunar landing
Specifications
Spacecraft type	Lunar lander
Launch mass	>45 t (99,000 lb)[1]
Dry mass	16 t (35,000 lb)[1]
Payload capacity	20 t (44,000 lb) (cargo variant, reusable) 30 t (66,000 lb) (cargo variant, one-way)[2]
Crew capacity	4
Regime	Near-rectilinear halo orbit Lunar landing
Design life	30 days
Dimensions
Height	16 m (52 ft)[1]
Production
Status	In development

Blue Moon is a family of lunar landers and their associated infrastructure, intended to carry humans and cargo to the Moon, under development by a consortium led by Blue Origin and including Lockheed Martin, Draper, Boeing, Astrobotic, and Honeybee Robotics. Two versions of Blue Moon are under development: a robotic lander planned to land on the Moon in 2024,^[3][4] and a larger human lander planned to land a crew of four astronauts on the lunar surface for the NASA Artemis V mission in 2029.^[5]

Development of the smaller, uncrewed lander began in 2016 and was publicly revealed in 2017. It is planned to be capable of delivering up to 3.0 tonnes (3.3 short tons) of payload to the surface of the Moon.^[6] Originally envisioned as a way to gain experience with lunar landings and to support technology development, MK 1 is also marketed independently of MK2. The lander has been proposed for a number of projected roles; an initial goal was a lunar south pole landing, where it was proposed that a series of landings could be used to deliver the infrastructure for a Moon base.^[3][4][7] Blue Moon formed the basis of part of the Integrated Lander Vehicle, a proposal for a human lander bid, but was not chosen for the Artemis HLS program.^[8]

The human lander, referred to as MK2,^[2] was chosen by NASA as the winner of the Sustaining Lunar Development Human Landing System contract in May 2023. It is the second human lunar lander under contract by NASA for the Artemis HLS program, alongside Starship HLS.^[9] It is intended to carry up to 4 astronauts to the lunar surface for up to 30 days in a fully reusable configuration, with a cargo variant also planned.^[2] The lander is designed to be paired with a space tug called the Cislunar Transporter, to be built by Lockheed Martin.^[1] The Cislunar Transporter is launched in two parts, a tug and a tanker, to low Earth orbit before refueling Blue Moon in a lunar near-rectilinear halo orbit.^[10] Both MK2 and the Cislunar Transporter are to be powered by three BE-7 engines burning liquid hydrogen fuel and liquid oxygen oxidizer.^[6] They are intended to make use of new cryogenic fluid management technologies under development, including those to enable long-term on-orbit storage of their cryogenic propellants.^[11]