Exploration Mission-2

Artist's concept of the SLS Block 1A in flight.

Mission type| Crewed lunar flyby
Operator| NASA
Spacecraft properties
Spacecraft type| Orion MPCV
Start of mission
Launch date| 2023 (planned)[1]
Rocket| SLS Block 1[2]
Launch site| Kennedy LC-39B[3]
End of mission
Landing site| Pacific Ocean[4]

Orion Program

<- EM-1

EM-3 ->

The Exploration Mission-2, or EM-2, is a scheduled 2023 mission of the Space Launch System and possibly the first crewed mission of NASA's Orion spacecraft.[1][5]

Originally, the crewed mission was intended to collect samples from a captured asteroid in lunar orbit by the now cancelled robotic Asteroid Redirect Mission.[6] The plan is for a crewed Orion spacecraft to perform a lunar flyby test and return to Earth. As of September 2018 the last crewed spacecraft to leave low Earth orbit was Apollo 17 in 1972.

## Contents

* 1 Mission objectives
* 1.1 Previous
* 1.2 Current
* 2 Similar missions
* 3 References

## Mission objectives

### Previous

Until 2017, EM-2 was a projected single-launch mission of a Space Launch System Block IB with an Exploration Upper Stage, lunar Block 1 Orion Multi-Purpose Crew Vehicle (MPCV), and a payload insertion of 50.7 t. The plan was to rendezvous with an asteroid previously placed in lunar orbit by the robotic Asteroid Redirect Mission and have astronauts perform space-walks and gather samples.[7] After the cancellation of the Asteroid Redirect Mission, it was proposed in 2017 to fly an eight-day mission with a crew of four astronauts, sent on a free return trajectory around the Moon.[8] Another proposal suggested in 2017 was to take four astronauts aboard Orion on an 8-to-21-day trip around the Moon to deliver the first element of the Lunar Orbital Platform-Gateway (LOP-G).[9]

### Current

EM-2 will send 4 astronauts a total of 1,090,320km over 9 days and have a re-entry speed of 24,500 mph (mach 32)

In March 2018 it was decided to launch the first Lunar Gateway module on a commercial launch vehicle[10] because of delays in building the mobile launch platform needed to hold the more powerful 'Exploration Upper Stage'.[11] As of 2018[update], the EM-2 mission plan is to send four astronauts in the first crewed Orion capsule into a lunar flyby for a maximum of 21 days. The mission profile is a multi-translunar injection (MTLI), or multiple departure burns, and includes a free return trajectory from the Moon. Basically, the spacecraft will orbit Earth twice while periodically firing its engines to build up enough velocity to push it toward the Moon before looping back to Earth.[12]

## Similar missions

In 1968, the Apollo 8 mission, crewed by 3 astronauts, was designed to test-fly a Command/Service Module beyond low Earth orbit. Although similar to EM-2 in that it was crewed and did not land on the Moon, it differed by entering lunar orbit for an extended stay.[13]

In 2005, the company Space Adventures announced plans to take two tourists within 100 km (62 mi) of the lunar surface using a Soyuz spacecraft piloted by a professional cosmonaut. The mission, named DSE-Alpha, has been priced at US$150 million per seat and is expected to last 8–9 days when scheduled. Company CEO Eric Anderson stated in 2011 that one seat had been sold, but the launch date has continually slipped since the second seat remains unsold as of 2017[update].[14]

A SpaceX lunar tourism mission was initially proposed for late 2018 and would have been similar to EM-2 in crew size, with two space tourists paying for a free-return loop around the Moon and back to Earth, using the Crew Dragon capsule and launched on the Falcon Heavy.[15][16] After the first flight of Falcon Heavy in 2018, SpaceX announced that Falcon Heavy would not be used for crewed flights to focus their future development on BFR and indicated that the lunar mission would more likely be carried out with the BFR system.[17][18] On September 14, 2018, SpaceX officially announced that it had signed one of the paying passengers, Yusaku Maezawa, for the mission using the BFR, now rescheduled for 2023, and that he would invite 6 to 8 artists to join him.[19][20]

## References

1. ↑ 1.0 1.1 https://www.rocketlaunch.live/launch/em-2
2. ↑ Bergin, Chris (23 February 2012). "Acronyms to Ascent – SLS managers create development milestone roadmap". http://www.nasaspaceflight.com/2012/02/acronyms-ascent-sls-managers-create-developmental-milestone-roadmap/. Retrieved 2012-07-14.
3. ↑ Hill, Bill (March 2012). "Exploration Systems Development Status". NASA Advisory Council. http://www.nasa.gov/pdf/630149main_5-Hill_SLS MPCV GSDO_508.pdf. Retrieved 2012-07-21.
4. ↑ Bergin, Chris (14 June 2012). "NASA teams evaluating ISS-built Exploration Platform roadmap". http://www.nasaspaceflight.com/2012/06/nasa-teams-evaluating-iss-built-exploration-platform-roadmap/. Retrieved 2012-07-21.
5. ↑ Gebhardt, Chris (22 September 2017). "SLS EM-1 & -2 launch dates realign; EM-3 gains notional mission outline". https://www.nasaspaceflight.com/2017/09/sls-em-1-em-3-notional-mission-outline/. Retrieved 23 September 2017.
6. ↑ Foust, Jeff (March 25, 2015). "NASA Selects Boulder Option for Asteroid Redirect Mission". Space News. http://spacenews.com/nasa-selects-boulder-option-for-asteroid-redirect-mission/. Retrieved 2015-03-27.
7. ↑ Wall, Mike (April 10, 2013). "Inside NASA's Plan to Catch an Asteroid (Bruce Willis Not Required)". Space.com. TechMediaNetwork. http://www.space.com/20612-nasa-asteroid-capture-mission-explained.html. Retrieved April 10, 2013.
8. ↑ Gary Daines, ed (August 4, 2017). "NASA's First Flight With Crew Will Mark Important Step on Journey to Mars". NASA. https://www.nasa.gov/feature/nasa-s-first-flight-with-crew-will-mark-important-step-on-journey-to-mars.
9. ↑ Gebhardt, Chris (April 6, 2017). "NASA finally sets goals, missions for SLS – eyes multi-step plan to Mars". https://www.nasaspaceflight.com/2017/04/nasa-goals-missions-sls-eyes-multi-step-mars/.
10. ↑ "NASA FY 2019 Budget Overview". https://www.nasa.gov/sites/default/files/atoms/files/nasa_fy_2019_budget_overview.pdf. Quote: "Supports launch of the Power and Propulsion Element on a commercial launch vehicle as the first component of the LOP - Gateway, (page 14)
11. ↑ NASA may fly crew into deep space sooner, but there’s a price. Eric Berger. Ars Technica. 12 April 2018. Quote: "Without the Exploration Upper Stage, NASA will not be able to fly, in a single flight, crew members and pieces of a deep space gateway it hopes to build near the Moon in the 2020s."
12. ↑ NASA's First Flight With Crew Will Mark Important Step on Journey to Mars. NASA - Last updated on February 9, 2018.
13. ↑ Charlie Wood (25 February 2017). "Apollo 8 redux: Why NASA may send humans around the Moon, again". Christian Science Monitor. http://www.csmonitor.com/Science/Spacebound/2017/0225/Apollo-8-redux-Why-NASA-may-send-humans-around-the-moon-again.
14. ↑ Moseman, Andrew (April 26, 2011). "Just One ($150 Million) Seat Remains on Space Adventures' Lunar Flyby". Popular Mechanics. http://www.popularmechanics.com/space/rockets/a13025/just-one-150-million-seat-remains-on-space-adventures-lunar-flyby/. Retrieved 2017-06-04.
15. ↑ "SpaceX promises a Moon vacation in 2018". The Verge. 3 March 2017. https://www.youtube.com/watch?v=A9R3Ndv7958.
16. ↑ Dave Trumbore (27 February 2017). "SpaceX Will Attempt to Send Humans Around the Moon Next Year". http://nerdist.com/spacex-will-attempt-to-send-humans-around-the-moon-next-year/.
17. ↑ SpaceX no longer planning crewed missions on Falcon Heavy. Jeff Foust, Space News. February 5, 2018.
18. ↑ Pasztor, Andy. "Elon Musk Says SpaceX’s New Falcon Heavy Rocket Unlikely to Carry Astronauts". Wall Street Journal. https://www.wsj.com/articles/elon-musk-says-spacexs-new-falcon-heavy-rocket-unlikely-to-carry-astronauts-1517876582?mod=rss_Technology. Retrieved 6 February 2018.
19. ↑ Eric Ralph (14 September 2018). "SpaceX has signed a private passenger for the first BFR launch around the Moon". https://www.teslarati.com/spacex-private-passenger-bfr-moon-mission/. Retrieved 14 September 2018.
20. ↑ Grush, Loren (14 September 2018). "SpaceX says it will send someone around the Moon on its future monster rocket". The Verge. https://www.theverge.com/2018/9/13/17857872/spacex-moon-trip-passenger-announcement-bfr. Retrieved 15 September 2018.

* v
* t
* e

Spacecraft missions to the Moon

Exploration
programs|

* American
* Apollo
* Artemis
* Commercial Lunar Payload Services
* Lunar Orbiter
* Lunar Precursor
* Pioneer
* Ranger
* Surveyor
* Chinese (Chang'e)
* Indian (Chandrayaan)
* Japanese
* Russian
* Luna-Glob
* Soviet
* Crewed
* Luna
* Lunokhod
* Zond

Active
missions|

| Orbiters|

* ARTEMIS
* Chang'e 5-T1 (service module)
* Lunar Reconnaissance Orbiter
* Queqiao (relay satellite at L2)
* Chandrayaan-2

|

Landers|

* Chang'e 3
* Chang'e 4

Rovers|

* Yutu-2

Past
missions|

| Crewed landings|

* Apollo 11
* 12
* 14
* 15
* 16
* 17
* (List of Apollo astronauts)

|

Orbiters|

* Apollo 8
* 10
* Apollo Lunar Module
* Chang'e 1
* 2
* Chandrayaan-1
* Clementine
* Explorer 35
* 49
* GRAIL
* Hiten
* LADEE
* Longjiang-2
* Luna 10
* 11
* 12
* 14
* 19
* 22
* Lunar Orbiter 1
* 2
* 3
* 4
* 5
* Lunar Prospector
* PFS-1
* PFS-2
* SMART-1
* SELENE (Kaguya, Okina, Ouna)

Impactors|

* LCROSS
* Luna 2
* Moon Impact Probe
* Ranger 4
* 6
* 7
* 8
* 9

Landers|

* Apollo Lunar Module ×6
* Luna 9
* 13
* 16
* 17
* 20
* 21
* 23
* 24
* Surveyor 1
* 3
* 5
* 6
* 7

Rovers|

* Lunar Roving Vehicle
* Apollo 15
* 16
* 17
* Lunokhod 1
* 2
* Yutu

Sample return|

* Apollo 11
* 12
* 14
* 15
* 16
* 17
* Luna 16
* 20
* 24

Failed landings|

* Surveyor 2
* 4
* Luna 5
* 7
* 8
* 15
* 18
* Beresheet
* Vikram / Pragyan

Flybys|

* 4M
* Apollo 13
* AsiaSat-3 / HGS-1
* Chang'e 5-T1 / Xiaofei
* Geotail
* ICE
* Longjiang-1
* Luna 1
* 3
* 4
* 6
* Mariner 10
* Nozomi
* Pioneer 4
* Ranger 5
* STEREO
* TESS
* WMAP
* WIND
* Zond 3
* 5
* 6
* 7
* 8
* PAS-22

Planned
missions|

| Artemis|

* Artemis 1 (2020)
* ArgoMoon
* BioSentinel
* Cislunar Explorers
* CU-E3
* CuSP
* EQUULEUS
* LunaH-Map
* Lunar Flashlight
* Lunar IceCube
* NEA Scout
* OMOTENASHI
* SkyFire
* Team Miles
* Artemis 2 (2022)
* Artemis 3 (2024)
* Artemis 4 (2025)
* Artemis 5 (2026)
* Artemis 6 (2027)
* Artemis 7 (2028)
* Artemis 8 (2028)

|

CLPS|

* CAPSTONE (December 2020)
* Nova-C (2021)
* Peregrine M1 (Jul 2021)
* VIPER (2022)

Luna-Glob|

* Luna 25 (2021)
* Luna 26 (2024)
* Luna 27 (2025)
* Luna 28 (2027)
* Luna 29 (2028)
* Luna 30 (2028)
* Luna 31 (2028)

CLEP|

* Chang'e 5 (mid-2020)
* Chang'e 6 (2023–2024)
* Chang'e 7 (2023)
* Chang'e 8 (2027)

Others|

* Moon Express Lunar Scout (Jul 2020)
* International Lunar Observatory
* MoonLIGHT
* ALINA (2021)
* CubeRover
* Uni
* Hakuto-R M1 (Oct 2021)
* MoonRanger (2022)
* SLIM (Jan 2022)
* KPLO (Jul 2022)
* DESTINY+ (2022)
* Hakuto-R M2 (Mar 2023)
* #dearMoon project (2023)

Proposed
missions|

| Robotic|

* Chandrayaan-3 (November 2020)
* Lunar Polar Exploration Mission (2024)
* Artemis-7
* Blue Moon
* BOLAS
* Garatéa-L
* ISOCHRON
* Lunar Pathfinder
* McCandless
* Moon Diver
* XL-1

|

Crewed|

* DSE-Alpha
* Lunar Gateway (Lockheed Martin Lunar Lander)
* Lunar Orbital Station

Cancelled /
concepts|

* Altair
* Baden-Württemberg 1
* European Lunar Explorer
* International Lunar Network
* LEO
* LK
* Lunar-A
* Lunar Lander
* Lunar Mission One
* Lunar Observer
* Lunokhod 3
* MoonLITE
* MoonRise
* Prospector
* Resource Prospector
* SELENE-2
* Ukrselena

See also|

* Colonization of the Moon
* Google Lunar X Prize
* List of lunar probes
* List of missions to the Moon
* List of artificial objects on the Moon
* Lunar resources
* Apollo 17 Moon mice
* Moon landing conspiracy theories
* Apollo 11 anniversaries
* List of crewed lunar lander designs

* Missions are ordered by launch date. Crewed missions are in italics.

* v
* t
* e

Orion program

* List of missions
* Exploration Ground Systems

Launch vehicles|

* Ares I
* Ares IV
* Delta IV Heavy
* Orion Abort Test Booster
* Space Launch System

Components|

* Crew module
* European Service Module

Development history|

* Crew Exploration Vehicle
* Orion Lite

Orion flights|

| Abort tests|

* MLAS (Jul 2009)
* Pad Abort-1 (May 2010)
* Ascent Abort-2 (Jul 2019)

|

Uncrewed|

* Ares I-X (Oct 2009)
* Exploration Flight Test-1 (Dec 2014)
* Artemis 1 (Nov 2020)

Crewed|

* Artemis 2 (2022)
* Artemis 3 (2024)
* Artemis 4 (2025)
* Artemis 5 (2026)
* Artemis 6 (2027)
* Artemis 7 (2028)

* Future missions indicated in italics.

* v
* t
* e

Future spaceflights

Crewed|

| 2020|

* Soyuz MS-16 (April)
* Soyuz MS-17 (October)
* Shenzhou 12
* Crew Dragon Demo-2
* Boeing Crewed Flight Test
* USCV-1
* USCV-2
* New Shepard (crewed flight test)
* VSS Unity VF02

|

2021|

* Gaganyaan Crewed Flight 1
* Shenzhou 13
* USCV-3

2022|

* Artemis 2

2023+|

* #dearMoon project (2023)
* Artemis 3 (2024)

Robotic|

| 2020|

* AFSPC-7
* ALOS-3
* ALOS-4
* Artemis 1 (November)
* Orion
* Lunar Flashlight
* NEA Scout
* BioSentinel
* SkyFire
* Lunar IceCube
* CuSP
* LunaH-Map
* EQUULEUS
* OMOTENASHI
* ArgoMoon
* Cislunar Explorers
* CU-E3
* Team Miles
* Chandrayaan-3
* Chang'e 5
* GSAT-20
* Hope Mars Mission (July)
* HX-1 (July–August)
* Ingenio
* Inmarsat-6 F1
* JCSAT-17
* Kounotori 9 (May)
* Mars 2020 (July–August)
* MX-1E (July)
* Nauka / European Robotic Arm (December)
* QZS-1R
* RAPIS-2 / Z-Sat / DRUMS / KOSEN-1
* Rosalind Franklin rover and Kazachok lander (July)
* Solar Orbiter (February)
* Space Complex Alpha
* TARANIS

|

2021|

* Aditya-L1
* Astrobotic M1 (June)
* AEM rovers
* Uni
* EXA/AEC lunar orbiter
* B330
* CAPSTONE (December)
* DART / LICIA (June)
* Dream Chaser (September)
* Hakuto-R M1 (October)
* IXPE (April)
* James Webb Space Telescope (March)
* Landsat 9 (January)
* Lucy (October)
* Luna 25 (July)
* Nova-C (July)
* PROBA-3 (Q2)
* PTScientists
* Tianhe
* SES-17
* Space RIDER
* UN/Dream Chaser
* Wentian
* XPoSat

2022|

* Biomass (October)
* DESTINY+
* EarthCARE (June)
* Euclid (June)
* HTV-X1
* JUICE (June)
* KPLO (July)
* MetOp-SG Series A
* NISAR (September)
* Power and Propulsion Element (December)
* Prichal
* Psyche (August)
* PUNCH / TRACERS
* Soyuz GVK-1
* SpaceX Starship (1st Mars departure)
* TEREX-1
* Weather System Follow-on Microwave
* XRISM / SLIM (January)

2023|

* Chang'e 7
* Hakuto-R M2 (March)
* MetOp-SG Series B
* QZS-5
* QZS-6
* QZS-7
* Shukrayaan-1
* SMILE
* SPHEREx

2024+|

* Chang'e 6 (2023 or 2024)
* FLEX
* GOES-U (2024)
* Hera / APEX / Juventas (October 2024)
* IMAP / SWFO-L1 (October 2024)
* Luna 26 (2024)
* MMX (September 2024)
* MOM 2 (2024)
* Small-JASMINE (2024)
* ZhengHe (2024)
* Europa Clipper (2025)
* Luna 27 (2025)
* Luna 28 (2025+)
* Spektr-UV (2025)
* Dragonfly (2026)
* PLATO (2026)
* Venera-D (2026 or 2031)
* Chang'e 8 (2027)
* LiteBIRD (2027)
* ARIEL / Comet Interceptor]] (2028)
* ATHENA (2031)
* LISA (2034)

TBA|

* Energia-100
* Europa Lander (2025?)
* KiwiSAT
* Lybid 1
* Nano-JASMINE
* Near-Earth Object Surveillance Mission
* WFIRST (mid-2020s)

Recently
launched|

* Progress MS-13 (6 December)
* Jilin-1 Gaofen-02B (7 December)
* HEAD-2A / 2B (7 December)
* GLONASS-M List of GLONASS satellites

* List of proposed missions to the Moon
* List of proposed space observatories

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