Wikipedia

Artemis III

(Redirected from Draft:Exploration Mission 3)

Artemis III is planned to be the first crewed Moon landing mission of the Artemis program and the first crewed flight of the Starship HLS lander.[5] Artemis III is planned to be the second crewed Artemis mission and the first American crewed lunar landing since Apollo 17 in December 1972.[6] As of December 2024, NASA officially expects Artemis III to launch no earlier than mid-2027 due to heat shield issues on Orion and valve problems in the spacecraft's life support system.[7][8]

Artemis III
Summary of the Artemis III mission plan
NamesExploration Mission-3 (2017–2019)
Mission typeCrewed lunar landing
OperatorNASA
Mission duration~30 days[1]
Spacecraft properties
SpacecraftOrion CM-004
Starship HLS
Manufacturer
Start of mission
Launch dateMid-2027 (planned)
RocketSpace Launch System Block 1[4]
Launch siteKennedy Space Center, LC-39B
End of mission
Landing sitePacific Ocean (planned)
Moon lander
Landing siteSouth polar region

In August 2023, due to delays in the development of Starship, NASA officials expressed an openness to flying Artemis III without a crewed landing.[9][10] In this case, the mission may become a crewed visit to the Lunar Gateway.[11] In April 2024, it was reported that alternative mission options being internally evaluated by NASA include a test of docking between Orion and Starship HLS in low Earth orbit.[12]

Overview

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The goal of Artemis III is to land a crew at the Moon's south polar region.[13] The mission would see two astronauts land on the surface of the Moon for a stay of about one week.[14] It is also intended to be the first mission to land a woman and a person of color on the Moon.[15][16] While up to four astronauts would launch aboard Orion, only two would land on the surface aboard Starship HLS, with the others remaining aboard Orion. The two astronauts will conduct up to four spacewalks on the Moon's surface, performing a variety of scientific observations, including sampling water ice. Before the Artemis III landing, some additional equipment will be pre-positioned on the surface, including an unpressurized rover for astronauts to use during their lunar excursions. This rover will have the capability to be controlled remotely. Several permanently shadowed regions could be reached by short forays of 5 to 15 km (3.1 to 9.3 mi), well within the range of the rover.[17]

 
Space Launch System evolution

Spacecraft

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Space Launch System

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Main article: Space Launch System

The Space Launch System is a super-heavy-lift launcher used to launch the Orion spacecraft from Earth to a trans-lunar orbit. This will be the final mission using the booster SLS Block 1, the design used for the first three missions. Afterward, from Artemis IV until Artemis VIII, missions will use SLS Block 1B, with a more capable Exploration Upper Stage, and a cargo hold to transport other payloads.

 
Orion crew capsule (2013)

Orion

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Main article: Orion (spacecraft)

Orion is the crew transport vehicle used by all Artemis missions. It will transport the crew from Earth to lunar orbit, dock with Starship HLS, and return the crew to Earth.

Starship HLS, depot, and tankers

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Main article: Starship HLS
 
Artemis III concept of operations

After a multi-phase design effort, on 16 April 2021, NASA selected SpaceX to develop Starship HLS and deliver it to near-rectilinear halo orbit (NRHO) prior to arrival of the crew for use on the Artemis III mission. The delivery requires that Starship HLS be refueled in Earth orbit before boosting to the NRHO, and this refueling requires a pre-positioned propellant depot in Earth orbit that is filled by multiple (at least 14[18]) tanker flights.[19] Two astronauts will transfer from Orion to Starship HLS, which will descend to the lunar surface and sustain them for several days before returning them to Orion. Following the return of the astronauts, Starship HLS will be disposed of by sending it into heliocentric orbit.[20]

Development

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Further information: Artemis program § History

Upon the December 2017 ratification of the Trump administration's Space Policy Directive 1, a crewed lunar campaign – later known as the Artemis program – using the Orion Multi-Purpose Crew Vehicle (MPCV) and a space station in lunar orbit was established. Originally billed as Exploration Mission-3 (EM-3), the goal of the mission was to send four astronauts into a near-rectilinear halo orbit around the Moon and deliver the ESPRIT and U.S. Utilization Module to the lunar space station, known as the Gateway.[21]

By May 2019 however, ESPRIT and the U.S. Utilization Module – now called HALO – were re-manifested to fly separately on a commercial launch vehicle. Artemis III, as it was now billed, was repurposed to accelerate the first crewed lunar landing of the Artemis program by the end of 2024, with a profile that would have seen the Orion MPCV rendezvous with a minimal Gateway space station made up of only the Power and Propulsion Element and a small habitat/docking node with an attached commercially-procured lunar lander known as the Human Landing System (HLS).[22]

By early 2020, plans for Orion and the HLS to rendezvous with the Gateway were abandoned in favour of direct docking of Orion and HLS, and delivery of the Gateway after Artemis III.[23][24]

On 10 August 2021, an Office of Inspector General audit reported a conclusion that the spacesuits would not be ready until April 2025 at the earliest, likely delaying the mission from the planned late 2024 launch date.[25] Axiom Space will design the space suits, with collaboration from fashion house Prada.[26]

On 9 November 2021, the Administrator of NASA, Bill Nelson, confirmed that Artemis III will launch no earlier than 2025.[27]

In June 2023, Jim Free, NASA's associate administrator for exploration systems development, said that launch would "probably" be no earlier than 2026.[28][29] Later in December 2023, the GAO reported the mission was unlikely to occur before 2027.[30]

In January 2024, NASA officially delayed Artemis III to no earlier than September 2026.[31]

On its third test flight Starship reached its desired orbital trajectory for the first time on 14 March 2024.

In March 2024, NASA announced the scientific instruments to be included on the mission were a compact, autonomous seismometer suite called the Lunar Environment Monitoring Station, or LEMS. LEMS will characterize the regional structure of the Moon's crust and mantle to inform the development of lunar formation and evolution models. Another instrument is Lunar Effects on Agricultural Flora, a.k.a. LEAF, which will investigate the impact of the lunar surface environment on space crops. The third instrument is the Lunar Dielectric Analyzer, or LDA, an internationally contributed payload that will measure the regolith's ability to propagate an electric field.[32]

The European Service Module for the mission was completed and delivered to NASA in September 2024.[33]

See also

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References

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  1. ^ Gebhardt, Chris (22 September 2017). "SLS EM-1 and EM-2 launch dates realign; EM-3 gains notional mission outline". NASASpaceFlight.com. Archived from the original on 2 October 2017. Retrieved 23 September 2017.
  2. ^ Berger, Eric (16 April 2021). "NASA selects SpaceX as its sole provider for a lunar lander - "We looked at what's the best value to the government"". Ars Technica. Archived from the original on 17 April 2021. Retrieved 17 April 2021.
  3. ^ Brown, Katherine (16 April 2021). "As Artemis Moves Forward, NASA Picks SpaceX to Land Next Americans on Moon". NASA. Archived from the original on 16 April 2021. Retrieved 17 April 2021.   This article incorporates text from this source, which is in the public domain.
  4. ^ Loff, Sarah (16 October 2019). "NASA Commits to Future Artemis Missions With More SLS Rocket Stages". NASA. Archived from the original on 20 January 2021. Retrieved 16 October 2019.   This article incorporates text from this source, which is in the public domain.
  5. ^ Potter, Sean (23 March 2022). "NASA Provides Update to Astronaut Moon Lander Plans Under Artemis". NASA. Retrieved 23 March 2022.
  6. ^ Foust, Jeff (13 March 2023). "NASA planning to spend up to $1 billion on space station deorbit module". SpaceNews. Retrieved 13 March 2023.
  7. ^ Donaldson, Abbey A. (5 December 2024). "NASA Shares Orion Heat Shield Findings, Updates Artemis Moon Missions". NASA. Retrieved 5 December 2024.
  8. ^ Sullivan, Will. "NASA Delays Artemis 2, Artemis 3 Moon Missions for Safety Reasons". Smithsonian Magazine. Retrieved 17 April 2024.
  9. ^ "NASA may delay crewed lunar landing beyond Artemis 3 mission". CNA. Retrieved 8 August 2023.
  10. ^ "NASA Acknowledges Challenges In Artemis III Schedule". aviationweek.com. Retrieved 8 August 2023.
  11. ^ Berger, Eric [@SciGuySpace] (8 August 2023). "There has been chatter for awhile that, if there are HLS and/or spacesuit delays, Artemis III could turn into a humans-to-Gateway mission. Gateway being ready, of course, is no slam-dunk either" (Tweet). Archived from the original on 8 August 2023. Retrieved 8 August 2023 – via Twitter.
  12. ^ Berger, Eric (19 April 2024). "NASA may alter Artemis III to have Starship and Orion dock in low Earth orbit". Ars Technica. Retrieved 6 July 2024.
  13. ^ Chang, Kenneth (25 May 2019). "For Artemis Mission to Moon, NASA Seeks to Add Billions to Budget". The New York Times. Archived from the original on 25 May 2019. Retrieved 25 May 2019. Under the NASA plan, a mission to land on the Moon would take place during the third launch of the Space Launch System. Astronauts, including the first woman to walk on the Moon, Jim Bridenstine said, would first stop at the orbiting lunar outpost. They would then take a lander to the surface near its south pole, where frozen water exists within the craters.
  14. ^ Foust, Jeff (21 July 2019). "NASA outlines plans for lunar lander development through commercial partnerships". SpaceNews. Archived from the original on 1 October 2021. Retrieved 17 July 2020.
  15. ^ Howell, Elizabeth (18 August 2022). "NASA's Artemis 3 mission: Landing humans on the moon". Space.com. Retrieved 11 December 2022.
  16. ^ "NASA unveils schedule for 'Artemis' 2024 Moon mission". France24. 23 May 2019. Archived from the original on 1 December 2020. Retrieved 21 July 2019.
  17. ^ Berger, Eric (29 October 2019). "NASA shares details of lunar surface missions—and they're pretty cool". Ars Technica. Archived from the original on 30 March 2021. Retrieved 17 July 2020.
  18. ^ "At Least 15 Starship Launches Needed to Execute Artemis III Lunar Landing". Retrieved 3 December 2023.
  19. ^ Chojnacki, Kent. "Human Landing System" (PDF). NASA.
  20. ^ Foust, Jeff [@jeff_foust] (31 October 2022). "Kirasich: no plans to reuse the Starship for the Artemis 3 landing. Will dispose of it by putting it on heliocentric orbit" (Tweet). Retrieved 31 October 2022 – via Twitter.
  21. ^ Sloss, Philip (4 December 2017). "NASA evaluates EM-2 launch options for Deep Space Gateway PPE". NASASpaceFlight.com. Archived from the original on 9 August 2019. Retrieved 2 March 2018.
  22. ^ Grush, Loren (17 May 2019). "NASA administrator on new Moon plan: "We're doing this in a way that's never been done before"". The Verge. Archived from the original on 4 July 2020. Retrieved 17 July 2020.
  23. ^ Gohd, Chelsea (16 March 2020). "NASA's "critical path" to the Moon no longer requires a lunar Gateway: Report". Space.com. Archived from the original on 16 May 2020. Retrieved 16 May 2020. NASA has removed the Lunar Gateway from its "critical path" to return humans to the Moon by 2024, according to a SpaceNews report.
  24. ^ Foust, Jeff (14 May 2020). "NASA refines plans for launching Gateway and other Artemis elements". SpaceNews. Archived from the original on 16 May 2020. Retrieved 16 May 2020. ... Loverro reiterated previous statements that the Gateway will not be used for the Artemis 3 mission that will attempt to land humans on the Moon to "make that mission have a higher probability of success".
  25. ^ "NASA's development of next-generation spacesuits" (PDF). 10 August 2021. Archived (PDF) from the original on 10 August 2021. Retrieved 10 August 2021. ... the suits would not be ready for flight until April 2025 at the earliest ... a lunar landing in late 2024 as NASA currently plans is not feasible.
  26. ^ "Prada to design Nasa's new Moon suit". BBC News. 5 October 2023. Retrieved 8 October 2023.
  27. ^ Foust, Jeff (9 November 2021). "NASA delays human lunar landing to at least 2025". SpaceNews. Retrieved 9 November 2021.
  28. ^ "NASA concerned Starship problems will delay Artemis 3". 8 June 2023.
  29. ^ "SpaceX Starship problems likely to delay Artemis 3 moon mission to 2026, NASA says". Space.com. 9 June 2023.
  30. ^ Foust, Jeff (1 December 2023). "GAO report warns Artemis 3 landing may be delayed to 2027". SpaceNews. Retrieved 8 January 2024.
  31. ^ Foust, Jeff (9 January 2024). "NASA delays Artemis 2 and 3 missions". SpaceNews. Retrieved 10 January 2024.
  32. ^ Cooper, Naomi (27 March 2024). "NASA Unveils 3 Lunar Instruments to Fly on Artemis III Mission". Retrieved 1 April 2024.
  33. ^ "Orion's European Service Module 3, the backbone of return to the Moon | Airbus". www.airbus.com. 21 August 2024. Retrieved 7 September 2024.
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