NASA ’s most powerful rocket is almost quick to broadcast an uncrewed Orion space capsule on a 25 - sidereal day journeying to the Moon and back , but this deceptively straight plan involve a gross ton of moving parts — including a harrowing 5,000 - degree reentry through Earth ’s atmosphere . Here ’s what you could look from this historic mission , called Artemis 1 , as NASA formally ushers in the Artemis era .
When will NASA’s SLS launch?
NASA is currently targeting Wednesday November 16 , with a two - hr launch window that opens at 1:04 a.m. ET . Meteorologists are currentlypredictinga 90 % chance of favorable weather for the Artemis 1 launching . In the consequence that SLS can not pilot on Wednesday morning , NASA has backup opportunity usable on November 19 and 25 .
NASA roll its Space Launch System ( SLS ) garden rocket back to Launch Pad 39B at Kennedy Space Center in Florida on Friday , November 4 , and had been planning to fly the projectile on November 14 , butTropical Storm Nicole forced a two - day hold . The space office is presently inquire pocket-sized harm cause by the violent storm , as the 321 - substructure - grandiloquent ( 98 - beat ) rocketendured excessive windson the launching pad .
The inaugural launching will institutionalize the$20.4 billionOrion on a 25 - day journey to the Moon and back , in a mission that will require the uncrewed capsule to travel a total distance of 1.3 million miles ( 2.1 million kilometre ) . Hunter will enter into a lunar orbit and hang out for a few weeks before return home base . Splashdown in the Pacific Ocean is expected on Sunday , December 11 — assuming Orion survives reentry . Its warmth shield will have to endure temperature pass 5,000 point Fahrenheit ( 2,760 degrees Celsius ) , as Orion is require to hit the aura at speeds reaching 25,000 miles per hour ( 40,000 kilometers per minute ) .

Artist’s conception of an SLS launch.Image: NASA
What’s the purpose of the Artemis 1 mission?
Artemis 1 is a run mission . It ’ll be the first integrate trial run of SLS and Orion , the latter of which wassent to space on a test missionin 2014 . As for SLS , this will be its first launch .
“ This is a mission that in truth will do what has n’t been done and learn what is n’t make out , ” Mike Sarafin , Artemis 1 mission handler at NASA , said in astatement . “ It will blaze a track that people will follow on the next Orion flight , pushing the edges of the envelope to prepare for that military mission . ”
Sarafin is referring to Artemis 2 , in which a crew Orion capsule will attempt a similar mission . Both Artemis 1 and 2 are preparatory mission for the material deal , Artemis 3 , in which NASA will seek to land a man and woman on the lunar surface . Artemis 2 is currently scheduled for late 2024 , while Artemis 3 could happen in 2025,but more realistically in 2026 .

SLS at Launch Complex 39B at NASA’s Kennedy Space Center in Florida.Photo: NASA
TheArtemis program as a wholeis NASA ’s movement to return humans to the lunar environment , but unlike Apollo , these missions are designed to keep us there . To that closing , NASA and its international partners are planning to build a lunar space station , call Gateway , to indorse activities both on and around the Moon .
Artemis seeks a sustainable and permanent return to the Moon , but in reality it ’s about something far grander . “ Our visual sense are not set on the Moon , ” Reid Wiseman , primary astronaut at NASA Johnson , distinguish newsman at a briefing on August 5 . “ Our sights are clearly set on Mars . ” Indeed , the technologies and experiences gain during Artemis will prepare NASA and its partners for crewed trek to the Red Planet , which could happen in the late 2030s or early 2040s . For all this to happen , however , NASA needs Artemis 1 to succeed . As Jim Free , managing director of exploration systems at NASA , told newsperson on November 11 , “ we ’re never break down to get to Artemis 2 if Artemis 1 is n’t successful . ”
NASA seek to launchArtemis 1on two anterior occasions , both resulting in a scrub . Thefirst scrub , on August 29 , was cancelled due to a faulty sensor , while thesecond scrub , on September 3 , was due to an unmanageablehydrogen leakage . The 2d bush prompt an impromptucryogenic tanking test , which NASA perform successfully on September 27 . The infinite agency thentargeted September 27for the third sodium lauryl sulphate launch attempt , butHurricane Ian force a time lag , get off themegarocket back to the Vehicle Assembly Buildingfor shelter .

Artist’s conception of Orion’s ICPS performing an engine burn to place it on a Moon-bound trajectory.Image: NASA
What is the role of SLS in Artemis 1?
A core technology for the Artemis broadcast is the$23.8 billionSpace Launch System , which NASA decision maker Bill Nelson described as the “ only rocket that can take humans to the Moon . ” crucify off with 8.8 million pound of thrust , it ’s the most brawny arugula ever built . The super heavy - lift launch vehicle will be more powerful than the Apollo - epoch Saturn V ( 7.5 million Irish punt of thrust ) , the organization that launch the Space Shuttle ( 7.8 million Syrian pound of thrusting ) , and SpaceX ’s Falcon Heavy ( 5 million pound of thrust ) . SpaceX ’s approaching Starship , however , will mishandle it out of the pee with 17 million pounds of drive at first launching . For Artemis 1 , SLS ’s Book of Job will be to give up Orion to Earth sphere , from where the capsule can get down on its journey to the Moon .
At launch , the 322 - foot - tall ( 98 - metre ) rocket will weigh about 6 million pounds . For Artemis 1 , NASA will utilize the Block 1 random variable of SLS , which sport the nitty-gritty stage ( fit withfour H - fueled RS-25D railway locomotive ) , a pair of five - section solid skyrocket boosters attached to the side , and the Orion capsule on top . The Block 1 gang configuration will be subject of vacate over 27 ton to space . A cardinal minute of the launching will pass at the 90 - second stain , when SLS reaches max q — the point during a launching when rockets are reveal to the greatest aerodynamic stress .
The 177 - foot - marvellous ( 54 - metre ) side boosters will burn for well-nigh three minutes , explicate John Honeycutt , Space Launch System program director at NASA ’s Marshall Space Flight Center , during the August 3 printing press briefing . The boosters will then jettison from the substance stage , diminish into the Atlantic , and subside to the ocean floor . NASA will make no attempt to go back the lifter . The core stage will close down approximately eight minute of arc after launching , but not before jettison the service module control board and launch abort system . The Orion gang capsule will then severalise from the rocket while still attached to the cryogenic propulsion stage ( ICPS ) that will power the capsule to the Moon .

Artemis 1 mission map.Graphic: NASA
What happens when Orion reaches the Moon?
After Orion completes one full orbit of Earth and deploys its solar arrays , ICPS will assist with a perigee lift maneuver followed by a 20 - minute trans - lunar injection , commit Orion on a trajectory that will permit it to be captured by the Moon ’s gravity . Hunter will divide from the ICPS roughly two hour after launching , after which time the ICPS will deploy 10 cubesats that are likewise point to the Moon .
Orion , now on its own , will then get its ability from a service mental faculty provided by the European Space Agency . The journey to the Moon will take around four Clarence Shepard Day Jr. , during which time land teams will carefully track the capsule ’s performance . Once at its destination , the armed service mental faculty will perform a vital lunar gravity assist play , allowing the craftsmanship to enter into a distant retrograde orbit . Orion ’s closest approach will see the spacecraft arrive to within approximately 60 sea mile ( 97 km ) of the lunar surface . We ’ll get some incredible images of the Moon during that closelipped flyby , in what is likely to be one of the highlights of the delegacy .
park in this elongated retrograde cranial orbit , the abridgement will travel some 40,000 miles ( 64,000 kilometre ) past the Moon — a length that ’s “ 30,000 international nautical mile ( 48,000 kilometers ) far than the premature record correct during Apollo 13 and the farthermost in space any spacecraft built for humans has flown,”accordingto NASA .

The Campos manikin being placed inside Orion on 12 May 2025.Photo: NASA
Orion will cruise behind the Moon , during which sentence communication with land controllers will temporarily be lost ( this will fall out each time Orion venture behind the Moon , as its arena lies in the same plane as Earth and the Moon ) .
Will anything be inside Orion?
Artemis 1 does n’t regard a human bunch , but Orion wo n’t be empty . Riding inwardly will be three form , named Campos , Helga , and Zohar . Together , these fake gang members will demonstrate what actual astronauts will have to endure during standardized missions .
NASA ’s Campos will bear a standard Orion spacesuit and measure vibrations , g - power , and radiation throughout the journey . On the topic of radiation , and unlike the International Space Station , Orion will travel beyond the protective boundary of the Van Allen Belts — conglobation of high - energy molecule positioned between the Earth and Moon . TheMoonikinwill be strapped to a new energy dampening system known as the Crew Impact Attenuation System .
Helga and Zohar — analogues of adult women — will take part in the MARE experimentation designed by the German Aerospace Center . Zohar will be put on an AstroRad radioactivity vest designed by Lockheed Martin and Israeli startup StemRad , while her companion , Helga , will not wear the vest and instead serve as the control .

Diagram showing the seating configuration for the three manikins, with Campos up top, Helga at bottom left, and Zohar, wearing the radiation vest, at right.Graphic: ESA/Lockheed Martin
womanhood aremore vulnerable to the peril posed by space radiation , giving rise to the manikin experiments , as Bhavya Lal , associate administrator for technology , policy , and strategy at NASA , explained during the August 3 press briefing . In bass space , humans will be exposed to more energetic atom , including those coming from the Sun ’s solar flare and from outside the galaxy . Radiation present “ a top environmental challenge beyond ” miserable Earth arena , Lal said , hence the importance of the manikin trio .
In terms of other passengers , Shaun the Sheepis also coming along for the drive . NASA is also sending an iPad to the Moon in an experiment totestAmazon ’s Alexa voice helper during the military mission .
Does Artemis 1 involve other payloads?
Yes . As already cite , the Orion stage adapter will launch10 cubesatsshortly after launch . Each orbiter will head to lunar field on its own , where they ’ll conduct various skill and engineering science mission .
NASA’sLunar IceCube satellitewill apply a spectrometer to contemplate lunar ice rink , while the agency’sBioSentinel probewill dribble yeast to measure the consequence of radiation on hold up organisms over a longsighted duration and beyond the protective Van Allen Belts . NASA says BioSentinel “ will convey the first study of the biological response to space radiation ” out of doors of low Earth scope in most 50 years . The remain eight cubesats , each no larger than a suitcase , willperform equally crucial tasksin the lunar surroundings .
What will happen when Orion comes back to Earth?
After several weeks spent in lunar orbit , Orion will do a return trajectory correction and head back home . “ For its return misstep to Earth , Orion will get another gravity help from the Moon as it does a second close flyby , open fire engines at precisely the proper clock time to harness the Moon ’s gravity and accelerate back toward Earth , plant itself on a trajectory to re - enter our planet ’s atmosphere , ” the space agency said .
The trek home plate will take four days . Once at Earth and just prior to reentry , Orion will jettison ESA ’s table service mental faculty . Moving at 6.8 miles per 2nd ( 11 kilometers per s ) , thecapsule will thrash into our satellite ’s air , during which time it will set a record for the fastest reentry of a crew - order distance fomite . Hunter ’s heat shield will have to take the brunt of this abuse , as Orion decelerates to speeds of 300 nautical mile per 60 minutes ( 480 km / hr ) .
At the press briefing on August 3 , Nelson enounce Orion will retort from the Moon at Mach 32 , but that a spacecraft returning from a future Mars mission is likely reach Mach 36 — or a daunting 27,400 miles per hour ( 44,099 km / 60 minutes ) . “ We ’ve got a good deal of examination to do , ” he said , enunciate Orion is equipped with “ the most advanced heat shield ever . ” He reminded reporters that “ this is a test flight of steps — it ’s just the starting time . ”

Artist’s conception of Orion passing behind the Moon. NASA hopes to capture an Earthrise image similar to this during the Artemis 1 mission.Image: NASA
A series of parachute will slow the trade even further , allow for a easy splashdown in the Pacific Ocean off the coast of San Diego . The Navy , along with teams from NASA ’s Exploration Ground Systems , will then audit and recover the vehicle using small boats and the amphibious transport dock shipUSS John P. Murtha .
As for the service mental faculty , it will burn up on reentry and “ fall as detritus ” onto the Pacific Ocean , accord to Philippe Deloo , Orion European Service Module program manager at ESA .
What are NASA’s key objectives for Artemis 1?
During the August 3 insistence briefing , Sarafin name four key objective for the debut Artemis deputation .
First , the place agency needs to sustain that Orion ’s heat shield will be capable of withstanding atmospheric reentry . As NASA says in itspress outfit , “ no aerodynamic or aerothermal test facility can recreate the condition the heat energy shield will experience returning at lunar return speeds . ” Indeed , the expected heat , at 5,000 degree Fahrenheit , is half the temperature of our Sun .
The space agency will also use Artemis 1 to demonstrate its operation and facilities throughout the entire military mission , such as “ NASA ’s launch facilities and solid ground - based base , SLS operations , including separation events during climb , Orion operations in space , and recovery procedure . ”

Orion recovery rehearsal on 28 March 2025.Photo: NASA/Tony Gray
A third and obvious objective will be to retrieve Orion after splashdown . NASA will come back the ballistic capsule to Kennedy Space Center upon the conclusion of the mission , where it will be dependent to a detailed inspection . team will “ cumulate data and test the integrity of the vehicle ” to better infer the “ engine room uncertainties ” involved , Sarafin said . terra firma teams will also retrieve the troves of information that will be gathered during the flight , including the data point meet by the three manikins . Hunter ’s chute organisation will also be retrieve and analyze .
NASA ’s 4th target is to follow with its side plans , such as certifying the capsule ’s optical seafaring system , deploying the 10 cubesats , and forgather imagination . At the August 5 briefing , Rick LaBrode , NASA ’s lead Artemis 1 flight theatre director , say NASA will make extra travail at public outreach , with at least one media event or outlet schedule for each day of the mission . LaBrode added that NASA will attempt to seize an Earthrise photo as Orion revert from the back side of the Moon , similar to thefamous photoscaptured during the Apollo geological era .
It ’s croak to be an incredible 25 - day journey , as NASA and partners embark on an entirely new chapter in the account of space exploration . It all starts — fingerbreadth crossbreed — on November 16 .

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