Artemis 1

Artemis 1, officially Artemis I[10] and formerly Exploration Mission-1 (EM-1),[11] is an ongoing uncrewed Moon-orbiting mission. As the first major spaceflight of NASA's Artemis program, Artemis 1 marks the return of the agency to lunar exploration as established by the Apollo program decades earlier. It is the first integrated flight test of the Orion spacecraft and Space Launch System (SLS) rocket.[note 1] Artemis 1 was successfully launched from Kennedy Space Center on November 16, 2022, at 06:47:44 UTC (01:47:44 EST).[12][2][13][14] Its main objective is to test the Orion spacecraft, especially its heat shield,[15] 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.[16]

Artemis 1
The SLS rocket launches Artemis 1 from Kennedy Space Center's LC-39B
  • Artemis I (official)
  • Exploration Mission-1 (EM-1) (formerly)
Mission typeUncrewed lunar orbital test flight
COSPAR ID2022-156A
SATCAT no.54257
Mission duration
  • 25 days, 11 hours, 36 minutes (planned)[1][2]
  • 22 days, 2 hours and 46 minutes (in progress)
Distance travelled1.3 million miles (2.1 million kilometers)
Spacecraft properties
SpacecraftOrion CM-002
Spacecraft typeOrion MPCV
Start of mission
Launch dateNovember 16, 2022, 06:47:44 UTC (1:47 am EST)[3]
RocketSpace Launch System Block 1
Launch siteKennedy Space Center, LC-39B
End of mission
Recovered byUSS Portland[4]
Landing dateDecember 11, 2022, 18:06 UTC (10:06 am PST)[2]
Landing sitePacific Ocean off San Diego[5]
Orbital parameters
Reference systemSelenocentric
RegimeDistant retrograde orbit
Period14 days
Flyby of Moon
Spacecraft componentOrion
Closest approachNovember 21, 2022, 12:57 UTC[6]
Moon orbiter
Spacecraft componentOrion
Orbital insertionNovember 25, 2022, 21:52 UTC[7]
Orbital departureDecember 1, 2022, 21:53 UTC[8]
Flyby of Moon
Spacecraft componentOrion
Closest approachDecember 5, 2022, 16:43 UTC[9]

Artemis 1 mission patch  

The SLS rocket launched from Complex 39B at the Kennedy Space Center with the Orion spacecraft aboard for a planned 25-day space mission.[17] After quickly reaching Earth orbit, the upper stage separated and performed a trans-lunar injection (burn to the Moon) before deploying ten CubeSat satellites. The Orion spacecraft completed one flyby of the Moon on November 21, entered a distant retrograde orbit for six days, completed second flyby of the Moon on November 25.[18] The Orion spacecraft is then planned to return and reenter the Earth's atmosphere with the protection of its heat shield and splash down in the Pacific Ocean. The mission aims to certify Orion and the Space Launch System for crewed flights beginning with Artemis 2.[19] After the Artemis 1 mission, Artemis 2 is scheduled to perform a crewed lunar flyby and Artemis 3, a crewed lunar landing, five decades after the last lunar Apollo mission.

The Orion spacecraft for Artemis 1 was stacked on October 20, 2021,[20] marking the first time a super-heavy-lift vehicle has been stacked inside NASA's Vehicle Assembly Building (VAB) since the final Saturn V in 1973. 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.[21]

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