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Exploration Mission-3

The Exploration Mission-3, or EM-3, is a planned 2024 mission of the Space Launch System and second crewed mission of NASA's Orion spacecraft.[2] The intended goal of the mission is to deliver the ESPRIT and U.S. Utilization modules to the Lunar Orbital Platform-Gateway (LOP-G).[3]

Exploration Mission-3
Orion visiting Deep Space Gateway.jpg
Artist's concept of the Lunar Orbital Platform-Gateway orbiting the Moon with the Orion spacecraft on the right.
Mission typeNear-Rectilinear Halo Orbit (NRHO)
Mission duration16-26 days[1]
Spacecraft properties
Spacecraft typeOrion MPCV
Start of mission
Launch date2024 (planned)[2]
RocketSLS Block 1B
Launch siteKennedy LC-39B
End of mission
Landing sitePacific Ocean
Orion Triangle Patch.svg
Orion Program
← EM-2
EM-4 →


Mission objectivesEdit

The EM-3 mission plan is to send four astronauts in the second Orion capsule into a near-rectilinear halo orbit around the Moon for a maximum of 26 days. It will also deliver two more elements of the future Lunar Orbital Platform-Gateway (LOP-G), a small space station in lunar orbit. The LOP-G components will be ESPRIT and the U.S. Utilization Module.[4] Exploration Missions 3 through 8 would complete the assembly of the Lunar Gateway.[5][6][7]

See alsoEdit


  1. ^ Gebhardt, Chris (22 September 2017). "SLS EM-1 & -2 launch dates realign; EM-3 gains notional mission outline". Retrieved 23 September 2017.
  2. ^ a b Davis, Jason (6 September 2018). "Orion's third flight will haul two pieces of a space station to lunar orbit". The Planetary Society. Retrieved 12 October 2018.
  3. ^ Sloss, Philip. "NASA evaluates EM-2 launch options for Deep Space Gateway PPE". Retrieved 2 March 2018.
  4. ^ Sloss, Philip (September 11, 2017). "NASA updates Lunar Gateway plans". Retrieved 2017-09-15.
  5. ^ Godwin, Curt (April 1, 2017). "NASA's human spaceflight plans come into focus with announcement of Deep Space Gateway". Spaceflight Insider. Retrieved 2017-04-02.
  6. ^ Chris Gebhardt (2015-09-22). "SLS manifest options aim for Phobos prior to 2039 Mars landing". Retrieved 2017-03-30.
  7. ^ "NASA Announces Progress on Asteroid Initiative | NASA". Retrieved 2017-03-30.

External linksEdit