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ORAC
30th Jul 2021, 11:13
https://www.inverse.com/innovation/inverse-daily-july-29-2021

NASA’ big tardy rocket isn’t doomed - but it seem’s kinda doomed

When the NASA space shuttle program ended pretty much a decade ago last week (the final mission was on July 21, 2011), it was hard to think about what would come next, especially if you grew up with the inspiring NASA live footage of the shuttle going to and returning to Earth.

Would a private company make rockets and sell their services to NASA? That kind of thinking might’ve seemed dangerous a decade ago, trusting a privately owned company with the lofty purposes of NASA.

And yet, NASA’s major rocket system to send humans and space science back into the great unknown may be doomed. The Space Launch System, or SLS for short, “would be the most powerful rocket we've ever built,” NASA has proclaimed. The problem is that it’s getting more expensive and further behind schedule.

Meanwhile, companies like SpaceX are getting results with engineering and developing their own rockets.

So, if you’re NASA, you don’t pause the mission progress to wait for your own tardy rocket. You contract with SpaceX. And that could maybe spell doom for SLS. It’s our lead story today. Keep scrolling to read more about it in a story from the new guy, Jon Kelvey (https://twitter.com/jonkelvey?lang=en).

https://www.inverse.com/science/spacex-nasa-contract-europa

SPACEX: NASA’s Europa deal reveals the tricky politics of space rockets

Hidden within the icy shell of Jupiter’s moon Europa (https://www.inverse.com/science/europa-might-harbor-aliens), there is an ocean — one which may host some form of life. Exploring this watery world is one of NASA’s top priorities for the next decade. That’s why the agency is pouring so much effort into a mission to explore the moon’s oceans — the Europa Clipper (https://www.inverse.com/article/28883-europa-clipper-mission-jupiter-moon-nasa) — which will launch in October 2024.

But earlier this month, NASA announced (https://www.nasa.gov/press-release/nasa-awards-launch-services-contract-for-europa-clipper-mission/) it is altering the mission in one critical way. The Clipper will launch SpaceX’s Falcon Heavy rocket and not atop NASA’s flagship launch vehicle, the Space Launch System.

The decision raises new questions about the future of the Space Launch System, which NASA continues to say is a cornerstone of its Artemis program to return humans to the Moon by 2024. It also tells us a lot about the symbiotic relationship between Elon Musk (https://www.inverse.com/topic/elon-musk)’s SpaceX and the agency.…..

That doesn’t mean the SLS won’t fly at all, though. In fact, Forczyk is certain it will.

“SLS has from the beginning been a political rocket,” she says. “A rocket that the Senate had decided that NASA needed to build to keep NASA expertise and contractor jobs in certain key districts.”

So long as powerful political supporters of the SLS, such as Alabama Senator Richard Shelby (https://www.shelby.senate.gov/public/index.cfm/newsreleases?ID=4D96DE65-BF29-4252-AFE9-1FEDD4FDCE23) and NASA Administrator Bill Nelson are in office, the rocket will continue to be developed — for the time being anyway….

When first announced in 2011, the vision was to make the first uncrewed tests flights with SLS in late 2017. Almost four years after that date, NASA is still in the middle of assembling this 188,000-pound behemoth (https://www.inverse.com/innovation/nasa-megarocket-artemis-sls-stacking) as of June 2021.

In addition to being behind schedule, the SLS is also projected to be more expensive to operate than the SpaceX Falcon Heavy. SLS launches will run around $2 billion (https://cdn.arstechnica.net/wp-content/uploads/2019/11/shelby-mega-approps-10-23-19.pdf), while the reusable Falcon Heavy (https://www.inverse.com/article/54678-falcon-heavy-elon-musk-video-reveals-size-of-world-s-most-powerful-rocket) launches for $90 million a pop.

These differences flow directly from the SLS’s status as a political project rather than a technical solution to the problem of lofting people and cargo into orbit, according to Forcyzk.

NASA states that people and material from all 50 U.S. states (https://spaceplace.nasa.gov/nasainthe50states/) will help to build the SLS. This is “because it is politically beneficial to mention how NASA touches all 50 states, but it is not a way to build a cost-effective rocket,” Forcyzk says.

SpaceX and other private launch providers are not so constrained by patriotism and politics.

This is a reminder that NASA is a political organization run by the U.S. government, Forczyk says. But it’s also a science and technology organization.

“[NASA] will choose the rocket that is the best available, assuming that Congress doesn’t interfere otherwise” for the mission at hand, she says. “Which is exactly what [NASA has] just done with the Europa Clipper,” she adds….

WHAT’S NEXT — If all goes according to plan, the Europa Clipper will launch for Europa aboard a Falcon Heavy in October 2024 and reached the Jupiter system by April 2030.

An SLS-powered Clipper, if NASA had gone that route, could have powered the Europa Clipper to Jupiter a little faster, by August 2027, according to a presentation (file:///Users/jonkelvey/Downloads/pappalardo%20presentation_ec%20caps.pdf) made by Europa Clipper Project Scientist Robert Pappalardo in 2020.

But the SLS will be sticking to the Artemis program, with Artemis I scheduled to launch an uncrewed Orion space capsule to the Moon, orbit it, and then come back to Earth in November 2021. It will then power the Artemis II and III missions in 2023 and 2024, respectively. Of course, the rocket is still not fully built at the time of writing.

Ultimately, Forczyk believes it would take a lot to keep the SLS rocket from being the one to fly these critical Artemis missions to space — albeit maybe not this year.

“The only thing I can see happening that would kill it would be complete, absolute complete failure,” she says, “and that would be unfortunate because a lot of really good people have worked on the program.”

Tango and Cash
8th Aug 2021, 18:23
It's a political rocket to nowhere. Other than as a jobs and contractor shareholder enrichment program, it serves no purpose. Will it be able to do things Falcon Heavy and Starship can't do? Maybe. Cost effective and timely? Absolutely not.

IMHO, this is what you get when large programs are subjected to political whims--constantly changing along with the politics of the day and therefore hugely expensive and ridiculously stretched out development.

How different things were back in the 60s, when there was a goal (beat the Soviets to the moon) and a deadline (before this decade is out). Apparently beating the Chinese to the moon doesn't provide the same motivation.

ORAC
3rd Mar 2022, 06:18
This is ridiculous. Look at the cost to put a crewed Artemis in orbit around the moon, in a single use launcher and capsule, to transfer to a Starship lander waiting for them.

Then look at the scale of the reusable Starship missions to get the lander there - and keep and refuel it there for future missions at a fraction of the cost.

And all on the taxpayers dollars… Not only is the entire Starship program 1/40 the cost - the taxpayer isn’t paying for it.

https://www.thetimes.co.uk/article/artemis-nasas-return-to-moon-to-cost-an-unsustainable-4-1bn-per-mission-jtlcqsxt9

Artemis: Nasa’s return to moon to cost an ‘unsustainable’ $4.1bn per mission

America’s return to the moon will cost more than $4.1 billion per mission, making it unsustainable in the long term, the space agency’s inspector-general has warned.

The total cost of Nasa’s lunar programme, Artemis, will have ballooned to $93 billion by 2025 — before it even gets its new rocket off the planet for a test flight.

“That is a price tag that strikes us as unsustainable,” Paul Martin, the space agency’s inspector-general, told a hearing of the House space and aeronautics subcommittee.

The warning throws into question the long-term future of Nasa’s new Space Launch System (SLS) — the most powerful rocket since the Saturn V that flew humans to the moon from 1968 to 1972 under the Apollo programme.

The ever-increasing costs are unlikely to derail SLS in the near term but questions have persisted for years as to the wisdom of continuing with its development. By comparison, SpaceX’s Starship launch vehicle — also currently under development and aiming for its first uncrewed test-flight around the earth this year (https://www.thetimes.co.uk/article/spacex-starship-is-close-to-orbiting-earth-says-elon-musk-dfq7xxpmr) — comes in at about 1/40th of the pricetag….

The programme has faced schedule delays, cost overruns and a “confusing mishmash of contract types and untried approaches to organisations and management”, Don Beyer, a Virginia congressman and the committee’s chairman, said.….

Martin laid part of the blame at the door of Nasa contractors including Boeing, which he accused of “poor planning and poor execution” and on Congress for contracting procedures that he said had failed to incentivise timely delivery of developmental milestones.


https://en.wikipedia.org/wiki/Starship_HLS

TURIN
17th Mar 2022, 10:37
Rollout scheduled for later today.

SLS Rollout

ORAC
25th Jul 2022, 09:21
https://www.usatoday.com/story/news/nation/2022/07/22/artemis-i-mission-sls-launch-date-time-nasa/10125421002/

NASA prepares for mission to return to the moon, targets late August launch of Artemis I

BREVARD COUNTY, Fla. – NASA is now targeting the morning of August 29 for the launch (https://bit.ly/3IXPNiE) of its monstrous Space Launch System rocket and the Artemis I mission to the moon, the agency announced Wednesday, the 53rd anniversary of the Apollo 11 moon landing….

The Artemis I mission, slated to send an uncrewed Orion capsule around the moon and back, is set to liftoff from Launch Complex 39B at Kennedy Space Center in Florida.

Teams are confident that their work has positioned them to launch the Artemis I mission in late August. Two other possible launch opportunities were identified as backups, September 2 and September 5.

If NASA is unable to launch the Space Launch System (SLS) during that timeframe, the rocket would have to be rolled back to the agency's Vehicle Assembly Building again for pre-launch work and would likely target another attempt no earlier than mid-October…..

If the SLS is able to launch the Artemis I mission on August 29 teams will target a liftoff during a two-hour window which would open at 8:33 a.m. ET.…

The mission is designed to be long-duration and last as long as 42 days with a targeted splashdown return of the Orion capsule no earlier than October 10. …

ORAC
19th Aug 2022, 11:01
https://cimg1.ibsrv.net/gimg/pprune.org-vbulletin/1460x2000/image_238591410d669211688396e706b1a385866432f1.jpeg

ORAC
24th Aug 2022, 12:29
Great article.

https://arstechnica.com/science/2022/08/the-sls-rocket-is-the-worst-thing-to-happen-to-nasa-but-maybe-also-the-best/

The SLS rocket is the worst thing to happen to NASA—but maybe also the best?

treadigraph
29th Aug 2022, 10:13
Artemis lift off due 2pm if the count down on the video is correct.

https://www.youtube.com/watch?v=21X5lGlDOfg

skadi
29th Aug 2022, 10:18
Artemis lift off due 2pm if the count down on the video is correct.

No, will be later because there is a planned "Hold" at T-10min. They started the countdown late due to WX and also the tanking was interrupted because a hydrogen leakage was detected.

skadi

ORAC
29th Aug 2022, 12:36
Launch scrubbed for today.

treadigraph
29th Aug 2022, 12:38
Scrubbed for today...

(oops, echoing Orac...)

B Fraser
29th Aug 2022, 12:42
A stress crack has been found in the insulation and there's an issue with engine #3.

What could SpaceX have done with half the money ?

Less Hair
29th Aug 2022, 13:16
Over 4 billion USD per pop.

SimonPaddo
29th Aug 2022, 13:19
That’s a lot of bucks for your bang.

ORAC
2nd Sep 2022, 06:39
NASA Update:

SLS go for Saturday attempt with some incremental risk acceptable on two items:

Thermal conditioning of the engines, and the TPS (Thermal Protection System) crack at the intertank flange.

treadigraph
3rd Sep 2022, 16:19
Scrubbed again... next attempt Monday/Tuesday...

https://www.bbc.co.uk/news/science-environment-62758482

wiggy
3rd Sep 2022, 16:37
I'm reminded of something usually attributed to Robert Gilruth, one of the driving forces behind the Apollo programme:

"People will only realise how hard it was to do this the first time when they try to do it the second time."

Private jet
3rd Sep 2022, 20:23
It's a political rocket to nowhere. Other than as a jobs and contractor shareholder enrichment program, it serves no purpose..

Sums it up perfectly.
Until humans come up with a much more efficient (& safer!) way of getting to at least orbit; a better vehicle than sticking a relatively tiny payload on top of a heavy fuel laden firework, then space exploration is best left to unmanned probes and commercial operations to satellites. There are far more pressing problems of a terrestrial nature than this expensive nonsense.

tdracer
4th Sep 2022, 04:27
I'm reminded of something usually attributed to Robert Gilruth, one of the driving forces behind the Apollo programme:

"People will only realise how hard it was to do this the first time when they try to do it the second time."
Great quote wiggy - I'll have to remember that.
Yes, there has been considerable inflation since Apollo, but compare the $4+ billion per launch cost to the full-up Saturn V/Apollo per launch costs of ~$250 million (and that included the LEM - so the ability to actually land on the moon - something that's not included in that massive Artemis per launch cost).

NASA has lost its way. Once a rare government agency that could actually get things done, it's gradually morphed into just another bloated government bureaucracy, more of a hindrance to advancements in spaceflight than advancing it.
At the beginning of 1961, NASA hadn't even launched a human off of this planet. In mid 1969, NASA landed on the moon - eight plus years later.
In July, 2011, NASA launched the last space shuttle into orbit. Eleven years later, NASA still hasn't regained the ability to launch humans into low earth orbit - never mind land on another celestial body.

wiggy
4th Sep 2022, 07:19
From NASA and elsewhere:

No further launch attempts in this window.

Vehicle may need to be rolled back to the VAB for work and possibly to avoid conflict with a launch off the adjacent pad.

There's a window late Sept but those dates are slightly sub-optimal...this comment from space flight commentator Robert Pearlman on the collectspace forum:

**

The launch day must account for the Moon's position in its lunar cycle so that the SLS rocket’s upper stage can time the trans-lunar injection burn with enough performance to successfully intercept the "on ramp" for the lunar distant retrograde orbit.

The resulting trajectory for a given day must ensure Orion is not in darkness for more than 90 minutes at a time so that the solar array wings can receive and convert sunlight to electricity and the spacecraft can maintain an optimal temperature range.

The launch date must support a trajectory that allows for the skip entry technique planned during Orion’s return to Earth.

The launch date must support daylight conditions for Orion’s splashdown to initially assist recovery personnel when they locate, secure, and retrieve the spacecraft from the Pacific Ocean.

The current span of acceptable launch dates ends on Sept. 6. The next period opens on Sept. 19 and runs through Oct. 4 (excluding Sept. 29 and Sept. 30).That said, the next set of launch opportunities results in a much shorter mission duration, so NASA may opt to target Oct. 17 to Oct. 31 (excluding Oct. 24, 25, 26, and 28) instead, to preserve the "long" mission profile.

**

NineEighteen
4th Sep 2022, 07:43
NASA needs to be bold in this era of intense and sometimes highly critical scrutiny. Not to mention a distinct lack of consistent political support. Different times.

Blackfriar
4th Sep 2022, 11:32
If it's Boeing, it ain't going.

HOVIS
4th Sep 2022, 22:28
At this rate SpaceX will get the Starship in orbit first.

IFMU
5th Sep 2022, 14:35
At this rate SpaceX will get the Starship in orbit first.
Many believed this all along, however I didn't think it would take as long as it has.

tdracer
6th Sep 2022, 21:29
Turns out there is another brilliant engineering design decision that's forcing further postponement. The Launch Termination System electrical system is completely independent of the rest of the launch systems electronics (for good reason). As a result, it's battery powered.
So far, so good. Rational system design.
Not so rational - the battery is life limited, with a maximum of 25 days from installation to when it needs to be serviced (just increased from 20 days in the last couple weeks) - and it's not serviceable on the pad :eek:. So once the launch system leaves the Vehicle Assembly Building, they only have 25 days to launch it, or it needs to be returned to the VAB. That is simply horrible engineering - the sort of thing a first year engineering student would know better. $4 Billion plus per launch, and they couldn't be bothered to provision the Launch Termination System to be serviceable on the pad :ugh:.

HOVIS
6th Sep 2022, 21:51
Just one of many cock ups.

IFMU
6th Sep 2022, 22:24
Artemis 1 now for sale on craigslist:
https://chicago.craigslist.org/chc/mpo/d/orlando-artemis-rocket/7530346653.html

Doesn't mention the battery however.

wiggy
7th Sep 2022, 07:25
Turns out there is another brilliant engineering design decision that's forcing further postponement. The Launch Termination System electrical system is completely independent of the rest of the launch systems electronics (for good reason). As a result, it's battery powered.
So far, so good. Rational system design.
Not so rational - the battery is life limited, with a maximum of 25 days from installation to when it needs to be serviced (just increased from 20 days in the last couple weeks) - and it's not serviceable on the pad :eek:. So once the launch system leaves the Vehicle Assembly Building, they only have 25 days to launch it, or it needs to be returned to the VAB. That is simply horrible engineering - the sort of thing a first year engineering student would know better. $4 Billion plus per launch, and they couldn't be bothered to provision the Launch Termination System to be serviceable on the pad :ugh:.

Comment elsewhere (Robert Pearlman on spacecollect forum) on this that the roll back to the VAB in part is due to the need "to meet the requirement by the Eastern Range for the certification on the flight termination system" (sic):

I haven't looked any further but this be a temporary requirement that was imposed by the USAF rather than something should (or perhaps could) have been foreseen at the design stage.

sfm818
7th Sep 2022, 11:46
Before the pendulum swung back in favour of Boeing (Michoud) the J-2X was in test. This archive film report of troubleshooting liquid hydrogen snags identified on Apollo 6 might be relevant. Incredibly, the next Saturn V launch (first manned mission) was straight into lunar orbit.

https://m.youtube.com/watch?v=ZUPTgpBhhBI

Uplinker
8th Sep 2022, 09:04
I have to wonder why NASA didn't start by building a Saturn V - they surely must have kept all the blue-prints? They know it works, and must have gigabytes of data from all the Saturn V launches, that could be used to improve that vehicle where possible with advances in technology and material science since the 1960's.

However, let's be honest; the money spent would have gone a long way to solving other far more pressing and important problems, e.g. renewable energy.

We really don't need to go back to the moon, or any other moon, to see if there is life there: we need to sort out life on this planet first.

sfm818
8th Sep 2022, 10:42
We really don't need to go back to the moon
#U/L

You might find this paper of interest. It references the actual reason why the US has such a strong interest in returning to the Moon. The official line from NASA is to land a woman and person of colour at the Lunar south pole, and some of the astronaut corps who are candidates for Artemis III have already started rotary wing training. However, that distracts from the fact space is becoming a contested domain, which will inevitably test the Outer Space Treaty of 1967. The ultimate goal is mining.

https://medium.com/@ToryBrunoULA/creation-of-a-u-s-strategic-propellant-reserve-b111044887e8

ORAC
8th Sep 2022, 11:32
I have to wonder why NASA didn't start by building a Saturn V
Can’t get there from here.

Every single electronic component is 60 years out of date and replacing them would need every part, and the sub-systems, systems etc, re certified and tested.

Most if the manufacturers, lowest-bidder, of the 5 million components won’t be in business any more, or the chains to certify their products if they were.

Nobody to manufacture the engines - and they wouldn’t use the methods, equipment or alloys used then - leading back to the certification issue.

Look at the problems they’ve had with the SLS using engines, boosters and electronics they already have - then multiply them a million fold.

might as well ask Boeing to build new 707. They wouldn’t be able to source the parts, have the equipment or jigs to put it together, meet the H&R rules to do so - and then the FAA wouldn’t clear anyone to fly on it anyway..

NineEighteen
8th Sep 2022, 16:04
Indeed. Sadly the 'correct' procedure would have been to build upon the success of the Apollo program and develop the technology over the following decades. Onwards towards Mars...rather than just stop and take a different route (Space Shuttle). However, the money (i.e. political will) was not there. So far as I can tell, it's barely there now. :\

wiggy
10th Sep 2022, 20:31
Looks like next launch attempt 23 or 27th September, if work being done on the pad to fix last weeks problems succeed and the US Space Force/Eastern Range give a waiver on the battery reset.

NASA targets next Artemis I launch attempt, but a lot has to go right | collectSPACE (http://www.collectspace.com/news/news-090822a-nasa-artemis-1-moon-mission-september-launch-attempt.html)

treadigraph
16th Nov 2022, 04:19
Looks to be launching in about 20 mins, 0540 GMT. Barring another hold...

Edit: Planned 30 min plus hold at T-10 mins... looks like about an hour hold.

(Just been looking at ADSB, 2 NASA helicopters about, plus a WB-57 and a Gulfstream 5 to the west of KSC)

treadigraph
16th Nov 2022, 05:56
Launched successfully and all seems to be going well so far. Artemis hopefully heading to the moon and I suppose I'd better go to Tesco. How mundane...

ORAC
16th Nov 2022, 06:14
All seemed so very retro.

Totally throw away boosters, totally throw away booster - including the 4 Shuttle main engines at $500M each. Only a few seconds of onboard video before cutting back to a ground camera trying to keep a small dot in the middle if the screen.

All building up to an eventual launch where SpaceX launch a couple of totally reusable boosters and Starships to refuel in orbit before taking their lunar lander to the moon to RV with Artemis to shuttle the crew to the surface, bring them back up, then refuel the lander for the next landing before recovering the Starship back to earth to be used again.

Sort of like a historic re-enactment where you have a copy of Columbus ship being filmed by a modern support ship as it leaves harbour and shuttling the crew about using their tender when they need to get go ashore…

SpringHeeledJack
16th Nov 2022, 06:46
I was hoping to maybe see Artemis orbiting the Earth, or even the rocket igniting for it's burn before it got light in Europe, but sadly ALL the live feeds are either still, or showing the launch of a while ago. Anyone care to guess why the live-feeds aren't working ? Does anyone know what the panned timetable is ?

skydiver69
16th Nov 2022, 08:22
All seemed so very retro.

Totally throw away boosters, totally throw away booster - including the 4 Shuttle main engines at $500M each. Only a few seconds of onboard video before cutting back to a ground camera trying to keep a small dot in the middle if the screen.

All building up to an eventual launch where SpaceX launch a couple of totally reusable boosters and Starships to refuel in orbit before taking their lunar lander to the moon to RV with Artemis to shuttle the crew to the surface, bring them back up, then refuel the lander for the next landing before recovering the Starship back to earth to be used again.

Sort of like a historic re-enactment where you have a copy of Columbus ship being filmed by a modern support ship as it leaves harbour and shuttling the crew about using their tender when they need to get go ashore…

In addition to that the manned missions require a new, larger launch tower which is likely to cost around $1bn and is 2 years behind schedule.

https://eu.floridatoday.com/story/tech/science/space/2022/06/13/nasa-audit-finds-launcher-sls-moon-rocket-could-exceed-1-billion/7571432001/

HOVIS
16th Nov 2022, 09:14
All seemed so very retro.

Totally throw away boosters, totally throw away booster - including the 4 Shuttle main engines at $500M each. Only a few seconds of onboard video before cutting back to a ground camera trying to keep a small dot in the middle if the screen.

All building up to an eventual launch where SpaceX launch a couple of totally reusable boosters and Starships to refuel in orbit before taking their lunar lander to the moon to RV with Artemis to shuttle the crew to the surface, bring them back up, then refuel the lander for the next landing before recovering the Starship back to earth to be used again.

Sort of like a historic re-enactment where you have a copy of Columbus ship being filmed by a modern support ship as it leaves harbour and shuttling the crew about using their tender when they need to get go ashore…

Almost correct. The Lunar Starship doesn't recover back to earth. No body flaps fitted. Once it's up its staying up. It may return to Earth orbit for refuelling though.

Tango and Cash
16th Nov 2022, 12:56
All seemed so very retro.

Totally throw away boosters, totally throw away booster - including the 4 Shuttle main engines at $500M each. Only a few seconds of onboard video before cutting back to a ground camera trying to keep a small dot in the middle if the screen.

All building up to an eventual launch where SpaceX launch a couple of totally reusable boosters and Starships to refuel in orbit before taking their lunar lander to the moon to RV with Artemis to shuttle the crew to the surface, bring them back up, then refuel the lander for the next landing before recovering the Starship back to earth to be used again.

Sort of like a historic re-enactment where you have a copy of Columbus ship being filmed by a modern support ship as it leaves harbour and shuttling the crew about using their tender when they need to get go ashore…

ORAC, you put into words what I was thinking--a blast from the past. Unlike watching recent SpaceX flights, I felt no excitement watching the launch.

I know if we're going back to the moon "to stay", we need a more robust system than the one-time Apollo style lander. This combination of SLS/Orion and Starship and landers and gateways just seems to be a cobbled-together mess. Perhaps it's the cynic in me, but it seems to be designed primarily to ensure there's a piece of the pie for all the usual suspects.

TURIN
12th Dec 2023, 11:44
https://youtu.be/U88DzZcsubs?si=0XSW4bnNTYXy4e9J
I've just found this. Full uncut reentry from the Artemis1 mission. I didn't realise it did a skip manoeuvre. Reentry, then back out of the atmosphere before final entry. The sound of the RCS thrusters is a bit unnerving though.

ORAC
19th Apr 2024, 22:04
https://arstechnica.com/space/2024/04/nasa-may-alter-artemis-iii-to-have-starship-and-orion-dock-in-low-earth-orbit/

NASA may alter Artemis III to have Starship and Orion dock in low-Earth orbit

Although NASA is unlikely to speak about it publicly any time soon, the space agency is privately considering modifications to its Artemis plan to land astronauts on the surface of the Moon later this decade.

Multiple sources have confirmed that NASA is studying alternatives to the planned Artemis III landing of two astronauts on the Moon, nominally scheduled for September 2026, due to concerns about hardware readiness and mission complexity.

Under one of the options, astronauts would launch into low-Earth orbit inside an Orion spacecraft and rendezvous there with a Starship vehicle, separately launched by SpaceX. During this mission, similar to Apollo 9, a precursor to the Apollo 11 lunar landing, the crew would validate the ability of Orion and Starship to dock and test habitability inside Starship. The crew would then return to Earth.

In another option NASA is considering, a crew would launch in Orion and fly to a small space station near the Moon, the Lunar Gateway, and then return to Earth.

To discuss these options, Ars asked for an interview with Catherine Koerner, a deputy associate administrator who oversees Exploration Systems Development for NASA. Instead, the space agency offered a noncommittal statement.

"NASA continues to work toward the Artemis II crewed test flight in September of 2025 and the Artemis III test flight to land astronauts near the lunar South Pole in September of 2026," the statement read. "The agency evaluates element progress and status on a daily basis and uses that data to make decisions at the right time for each mission as a part of prudent programmatic and mission management.

“Should a particular hardware element not be available to support a mission as scheduled or planned, NASA will evaluate the readiness of available hardware for options to make those decisions with crew safety as the number one priority."…..

NASA has asked SpaceX to look at a mission where Orion would rendezvous with the Starship vehicle in orbit around Earth. Such a mission—whether called Artemis IIS or Artemis III—would solve a lot of problems for the space agency and appears to be the preferred option at this time. ….

Critically, it would verify the ability of the two spacecraft to dock in an environment where, if there were a problem, it would be much easier for the crew to return safely home. It would also validate the ability of astronauts to live inside Starship and perform some ascent and descent maneuvers.

Perhaps just as importantly, such a mission would allow the space agency to avoid a long gap between Artemis II and Artemis III.

No one is quite certain how long it will take SpaceX to deliver a Starship vehicle that is capable of landing safely on the Moon and then taking back off. The company is known for moving very fast in the development phase, but it still has a tremendous amount of work to do with Starship….

Diff Tail Shim
19th Apr 2024, 22:55
https://arstechnica.com/space/2024/04/nasa-may-alter-artemis-iii-to-have-starship-and-orion-dock-in-low-earth-orbit/

NASA may alter Artemis III to have Starship and Orion dock in low-Earth orbit

Although NASA is unlikely to speak about it publicly any time soon, the space agency is privately considering modifications to its Artemis plan to land astronauts on the surface of the Moon later this decade.

Multiple sources have confirmed that NASA is studying alternatives to the planned Artemis III landing of two astronauts on the Moon, nominally scheduled for September 2026, due to concerns about hardware readiness and mission complexity.

Under one of the options, astronauts would launch into low-Earth orbit inside an Orion spacecraft and rendezvous there with a Starship vehicle, separately launched by SpaceX. During this mission, similar to Apollo 9, a precursor to the Apollo 11 lunar landing, the crew would validate the ability of Orion and Starship to dock and test habitability inside Starship. The crew would then return to Earth.

In another option NASA is considering, a crew would launch in Orion and fly to a small space station near the Moon, the Lunar Gateway, and then return to Earth.

To discuss these options, Ars asked for an interview with Catherine Koerner, a deputy associate administrator who oversees Exploration Systems Development for NASA. Instead, the space agency offered a noncommittal statement.

"NASA continues to work toward the Artemis II crewed test flight in September of 2025 and the Artemis III test flight to land astronauts near the lunar South Pole in September of 2026," the statement read. "The agency evaluates element progress and status on a daily basis and uses that data to make decisions at the right time for each mission as a part of prudent programmatic and mission management.

“Should a particular hardware element not be available to support a mission as scheduled or planned, NASA will evaluate the readiness of available hardware for options to make those decisions with crew safety as the number one priority."…..

NASA has asked SpaceX to look at a mission where Orion would rendezvous with the Starship vehicle in orbit around Earth. Such a mission—whether called Artemis IIS or Artemis III—would solve a lot of problems for the space agency and appears to be the preferred option at this time. ….

Critically, it would verify the ability of the two spacecraft to dock in an environment where, if there were a problem, it would be much easier for the crew to return safely home. It would also validate the ability of astronauts to live inside Starship and perform some ascent and descent maneuvers.

Perhaps just as importantly, such a mission would allow the space agency to avoid a long gap between Artemis II and Artemis III.

No one is quite certain how long it will take SpaceX to deliver a Starship vehicle that is capable of landing safely on the Moon and then taking back off. The company is known for moving very fast in the development phase, but it still has a tremendous amount of work to do with Starship….
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