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Artemis I

"EM-1" redirects here. For other uses, see EM1 (disambiguation).

Artemis I
The Space Launch System launches from Kennedy Space Center's LC-39B
Names
  • Artemis I (official)
  • Exploration Mission-1 (EM-1)
Mission typeUncrewed lunar orbital flight test
OperatorNASA
COSPAR ID2022-156A Edit this at Wikidata
SATCAT no.54257Edit this on Wikidata
Websitenasa.gov/artemis-i
Mission duration25 days, 10 hours, 52 minutes and 46 seconds
Distance travelled1.3 million miles (2.1 million kilometers)
Spacecraft properties
SpacecraftOrion CM-002
Spacecraft typeOrion
Manufacturer
Start of mission
Launch dateNovember 16, 2022, 06:47:44 UTC[1] (1:47:44 am EST)
RocketSpace Launch System Block 1
Launch siteKennedy Space Center, LC-39B
End of mission
Recovered byUSS Portland[4]
Landing dateDecember 11, 2022, 17:40:30 UTC[2] (9:40:30 am PST)
Landing sitePacific Ocean off Baja California[3]
Orbital parameters
Reference systemSelenocentric
RegimeDistant retrograde orbit
Period14 days
Flyby of Moon
Closest approachNovember 21, 2022, 12:57 UTC[5]
Distance130 km (81 mi)
Moon orbiter
Orbital insertionNovember 25, 2022, 21:52 UTC[6]
Orbital departureDecember 1, 2022, 21:53 UTC[7]
Flyby of Moon
Spacecraft componentOrion
Closest approachDecember 5, 2022, 16:43 UTC[8]
Distance128 km (80 mi)

Artemis I mission patch

Artemis I, formerly Exploration Mission-1 (EM-1),[9] was an uncrewed Moon-orbiting mission that was launched in November 2022. As the first major spaceflight of NASA's Artemis program, Artemis I marked the agency's return to lunar exploration after the conclusion of the Apollo program five decades earlier. It was the first integrated flight test of the Orion spacecraft and Space Launch System (SLS) rocket,[note 1] and its main objective was to test the Orion spacecraft, especially its heat shield,[10] in preparation for subsequent Artemis missions. These missions seek to reestablish a human presence on the Moon and demonstrate technologies and business approaches needed for future scientific studies, including exploration of Mars.[11][12]

The Orion spacecraft for Artemis I was stacked on October 20, 2021,[13] and on August 17, 2022, the fully stacked vehicle was rolled out for launch after a series of delays caused by difficulties in pre-flight testing. The first two launch attempts were canceled due to a faulty engine temperature reading on August 29, 2022, and a hydrogen leak during fueling on September 3, 2022.[14] Artemis I was launched on November 16, 2022, at 06:47:44 UTC (01:47:44 EST).[15]

Artemis I was launched from Launch Complex 39B at the Kennedy Space Center.[16] After reaching Earth orbit, the upper stage carrying the Orion spacecraft separated and performed a trans-lunar injection before releasing Orion and deploying ten CubeSat satellites. Orion completed one flyby of the Moon on November 21, entered a distant retrograde orbit for six days, and completed a second flyby of the Moon on December 5.[17]

The Orion spacecraft then returned and reentered the Earth's atmosphere with the protection of its heat shield, splashing down in the Pacific Ocean on December 11.[18] The mission aims to certify Orion and the Space Launch System for crewed flights beginning with Artemis II,[19] which is scheduled to perform a crewed lunar flyby no earlier than September 2025.[20] After Artemis II, Artemis III will involve a crewed lunar landing, the first in five decades since Apollo 17.

  1. ^ Cite error: The named reference reuters 1 was invoked but never defined (see the help page).
  2. ^ Chang, Kenneth (December 11, 2022). "NASA Artemis I Splashdown". New York Times. Retrieved September 4, 2024.
  3. ^ Davis, Jason. "Artemis I launch guide: What to expect". The Planetary Society. Archived from the original on August 15, 2022. Retrieved August 24, 2022.
  4. ^ "Artemis 1 flight to moon depends on precision rocket firings to pull off a complex trajectory". CBS News. August 27, 2022. Archived from the original on August 29, 2022. Retrieved August 31, 2022.
  5. ^ Cite error: The named reference NASA_20221120 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Flight Day 11 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Flight Day 16 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Flight Day 20 was invoked but never defined (see the help page).
  9. ^ Hambleton, Kathryn (February 20, 2018). "Artemis I Overview". NASA. Archived from the original on August 17, 2022. Retrieved August 24, 2022.
  10. ^ "NASA: Artemis I". NASA. Archived from the original on March 15, 2022. Retrieved November 17, 2022.
  11. ^ Dunbar, Brian (July 23, 2019). "What is Artemis?". NASA. Archived from the original on August 7, 2019. Retrieved November 17, 2022.
  12. ^ "Stowaways on NASA's massive Moon rocket promise big science in small packages". Science.org.
  13. ^ "NASA Fully Stacked for Moon Mission, Readies for Artemis I". NASA. October 23, 2021. Archived from the original on November 17, 2022. Retrieved November 17, 2022. Public Domain This article incorporates text from this source, which is in the public domain.
  14. ^ Foust, Jeff (September 3, 2022). "Second Artemis I launch attempt scrubbed". SpaceNews. Archived from the original on November 17, 2022. Retrieved September 4, 2022.
  15. ^ "Artemis 1". NASA. Archived from the original on December 19, 2022. Retrieved November 17, 2022.
  16. ^ "Artemis 1 Presskit" (PDF). Archived (PDF) from the original on November 15, 2022. Retrieved August 31, 2022.
  17. ^ Sloss, Philip (November 1, 2021). "Inside Artemis 1's complex launch windows and constraints". NASASpaceflight.com. Archived from the original on February 25, 2022. Retrieved March 25, 2022.
  18. ^ Cite error: The named reference Splashdown was invoked but never defined (see the help page).
  19. ^ Clark, Stephen (May 18, 2020). "NASA will likely add a rendezvous test to the first piloted Orion space mission". Spaceflight Now. Archived from the original on July 8, 2020. Retrieved May 19, 2020.
  20. ^ Foust, Jeff (January 9, 2024). "NASA delays Artemis 2 and 3 missions". SpaceNews. Retrieved January 10, 2024.


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