James Webb Space Telescope launch [video]
youtube.com
youtube.com
- Nova+Mono is the wrong font for a display like this.
- Those characters in very light gray make incredibly difficult to read and contrast specially at the bottom part of the display were they just fade into the dark the blue background.
Notice the difference and much better result, with the color choice for characters in the James Webb pages posted above.
It also seems to me that the faded out section at the bottom is like that because none of the stations are online with the spacecraft.
As we watched the launch I asked her what James Web means to astronomy. Her answer? "It will fundamentally change what we know about the universe".
Would she know about any list of projects that intend to use the new measurements?
I was thinking something in the lines of:
"We'll test hypothesis y by observing x, that would help us understand whether theory A or B (or neither) is right"
Watching the launch made me feel the wonder of spaceflight I felt as a child- and the holiday timing felt even more perfect.
“Development began in 1996 for a launch that was initially planned for 2007”
“Construction was completed in late 2016, after which an extensive testing phase began”
https://en.m.wikipedia.org/wiki/James_Webb_Space_Telescope
While it’s great that it’s finally up, we should re-evaluate why it takes such a long time to develop these projects.
The pace of innovation appears to have slowed greatly in recent decades.
If, instead, we would build stuff in orbit it would be much cheaper and faster as you don't need origami like folding, high Gs resistance, and a malfunctioning piece can be replaced easily.
It’s not just this project, NASA, for example, hasn’t had the capability to put humans in space since the Shuttle retired.
Anyway, we are all aware of the Manhattan Project, Space Race, SR71 development, …
Someone mentioned this book yesterday, maybe it has some of the answers
https://www.amazon.com/Where-Flying-Car-Storrs-Hall/dp/19539...
Are you sure it would be cheaper? Building orbital build facility would be so expensive. Housing staff to build in the orbit or investing in robotics isn't cheap (or possible) either. So it's cheaper to include hardening against high-G launches than build orbital facility for the amount of launches that need this kind of preparations.
I am expecting still is much more cheaper to create bigger rockets then move the factories,the workers and everything they need in orbit.
Not to mention crazy long range VLBI radio setups or telescopes at the edge of the solar system using the gravity lensing of the Sun to observe things.
Sure, maybe in very limited capacity, like why not build stuff in giant parts like giant lego blocks on the planet and have some robots and a few people assemble it in orbit.
Rather then have 10K people work extremely inefficient and dangerous in zero gravity(I am assuming you mean we capture asteroids and we build stuff from bare minerals up). Imagine what extremely expensive factories you need that work in zero gravity(things fly everywhere at a small bump) , so maybe first we build a giant rotating space station using parts made on Earth.
In the long term we should have better rockets , maygbe we pt a space station in the important points in our solar system and send them this big lego parts so they can just assemble them.
Personally I see no way humans can live and work more efficient in space compared to live and build stuff on Earth and pay some guys to build big rockets and move the stuff into space, even in long term. What we are missing today is the ability to have guys present when the telescope unfolds to help with problems and manually do fine calibrations, if we could have that we could build a giant mirror made from small parts and have people just help connect the parts
The picture becomes rapidly less impressive when we look at where that processing goes, in many cases much of it is consumed with processing that's not directly related to useful output, though one area that has benefitted greatly has been usability: a computer user used to be a very highly skilled and trained position, now infants and those with severe cognitive or other impairments can make productive use of computers --- a lot of processing power goes into simply expanding the potential user-base.
(This isn't a slight or dig at who computer users are at present, though I admit some frustrations with how this transforms mass-market platforms, devices, and software away from power-user capabilities and interests.)
Network-dynamics systems (which microprocessors arguably are) can also see similar types of dynamics, at least over a range of scale.
In many other domains though, the engineering possibility frontier is one of sharply diminishing returns, after even only a fairly trivially small amount of initial progress. Occasionally there are bursts of progress, often as two separte areas of technological develoopment are integrated together, but even that often provides only a brief period of high returns.
What I see lacking is even a rudimentary model of what domains within technology do and do not afford for accelerating returns to scale, or what the bounds and limits of the exceptions might be, or what the actual delivered net benefit of such accelerating returns might be.
Precision generally is an area of positive feedbacks just as you describe. I only know a small amount about the practices, but the ability to measure and control with high degrees of precision have brought forth a tremendous set of advances, microprocessors being amongst them, but hardly the only.
The pharmaceuticals industry relies on precise control over feedstocks, process, consistency, and logistics chain (especially where temperature-controlled distribution is required).
Metallurgy similary developed with control over the quality of feedstocks, temperatures, pressures, and overall processing, as well as the ability to directly assess outputs, crystal structures, and the like.
Microsurgery relies on tools, sensors, and measurement, as well as coordination amongst a surgical team.
Tunnelling and mining can now occur with phenomenal precision through solid rock.
That's just a handful of examples off the top of my head as someone outside the field. I'm missing numerous highly notable examples I'm sure.
Fusion power harder than Fission, Webb harder than Hubble, bigger particle smashers harder than smaller. Sometimes earlier innovations allow you to accelerate the next innovation but eventually you get diminishing returns.
We older tech and science nerds need to be careful not to fall in the “kids these days” traps. The kids are allright, the innovations of the past were full of chaos irrationally and mistakes as well.
Innovation happens when there is a threat to civilization or national prestige.
Moving quickly requires very specific managerial skills & risk appetites.
Legacy scientific institutions (like NASA, or most universities) have basically succumbed to extreme Peter Principle: everyone has been promoted to their level of incompetence. Excellent thinkerw can make catastrophic managers.
This is a known issue in startup land, and mitigations have a been learned. Examples: independent, deep career paths for mangers and contributors. A funding model that is milestones based with minimal barriers to entry.
SpaceX of course being some sort of proof in this regard.
It's not just NASA of course. Look at ITER--a fusion project started in 2007 with an expected completion date of 2025. Or the Second Avenue Subway, or any number of infrastructure projects.
If you wrote a company manual designed to maximize the odds of failure, you'd end up with something pretty close to the way academic and govt projects are run.
The same way when you see news of large drug busts, the numbers floated around are based on how much the confiscated load could fetch on the street (iow. end of the chain, with addicts paying through the nose) - not on how much it cost to manufacture.
Project like Webb and ITER are doing things that simply haven't been done before which makes it much more difficult. They are also beholden to politicians for funding.
Especially with the rudimentary computers and calculations of the time. The James Web Telescope, is a great feat, but not in the same league as the moon landings.
Building an observatory is VERY difficult. Nevermind the "avionics" for an L2 mission, the manufacturing of the sensors, mirrors, and all the other mechanical parts are one-of-a-kind.
Webb is without a doubt an amazing feat of engineering and the engineering teams had to confront problems that were not even thought of for Apollo. Massive respect to them.
Why not? It seems an amazingly complex bit of engineering. The Apollo missions are impressive in their own right, but are they really that much more complex from an engineering perspective? The tolerances and precision required for JWST to be functional must be incredibly tight.
Indeed, we must keep in mind that the tolerance for failure was higher even as the cost of failure was higher. Do not forget the astronauts taken by Soyuz and Apollo.
Like... Apollo was utterly bonkers, bordering on full-Kerbal, in so many ways. It cost lives (5 training flight accidents, 3 in Apollo 1 fire), almost lost another 3 in Apollo 13.
JWST is proving out tons of new science and technology, but at a much more pedestrian peace.
This is a novel masterpiece of science and engineering, not a jet fighter or rocket destined for mass production and deployment. There will only ever be one, so there's literally zero room for error. Better to measure twice and cut once, so to speak.
These projects are subject to incredibly rigorous post-mortem investigations, and each cost and time overrun is _already_ documented thoroughly and publicly. Congress doesn't give this money away lightly. We know exactly why, and when, things took longer than expected, and those lessons learned are already being applied to subsequent observatories like Roman.
Nope. We as a society have just re-evaluated what is the innovation we want. In the old days it was moon programs and nuclear technology (for good and bad). Later we deemed circumventing financial regulation and getting people click ads more important.
Cathedral Notre Dame was begun in 1163, took 182 years to complete. We moderns recognize it as a thing of beauty (pre-blaze), but I'm sure it was a tour de force for technology of the times, with many unexpected problems that delayed the project.
I'm glad each project's sponsors saw them through to completion. I hope humanity continues to sign up for hard goals that take time to reach.
JWST took so long because it was so ambitious. Hubble has a 2.4m mirror. JWST has a 6.5m mirror. No rocket can launch that fully assembled so you've automatically added a bunch of complexity to unfurl and assemble that in space.
There's a whole bunch of other new things that simply have never been done before. Any one of these is a challenge. Doing them all at once with almost no margin for error and no possibility of intervention and repair drastically increases the complexity and cost.
Another example: the instruments are so sensitive that after fairing release it has to be rotated to keep them away from direct sunlight. That'll continue on the journey to its final orbit.
Also the sunshields are tennis court sized.
It is mind-bogglingly complex.
Arguably what they should've done is launch something slightly less ambitious sooner.
100 years ago, they would pick up trash on horse carriage.
500 years ago, they'd burn witches if the cows caught a virus in the village.
2000 years ago, Europe didn't write, in most countries...
It took 20 years to build this insane machine. Did we truly slow down :D Maybe americans have become biased, but as a French, just launching this thing in a machine that can launch 80 successive and productive payloads in space is a positive sign of progress compared to how far our country was 2000 years ago compared to its peers in Asia and Africa.
For reference:
https://www.inverse.com/article/42894-sunshield-rips-keep-ja...
"The James Webb Space Telescope is launched on a direct path to an orbit around the second Sun-Earth Lagrange Point (L2), but it needs to make its own mid-course thrust correction maneuvers to get there. This is by design, because if Webb gets too much thrust from the Ariane rocket, it can’t turn around to thrust back toward Earth because that would directly expose its telescope optics and structure to the Sun, overheating them and aborting the science mission before it can even begin. Therefore, Webb gets an intentional slight under-burn from the Ariane and uses its own small thrusters and on-board propellant to make up the difference."
This is a very delicate machine.
Hundreds of deployment steps will follow. Each one has to go perfectly. If it doesn't, the JWST fails and tens of billions of dollars and 30 years wasted (by some definition of 'waste').
But for every single one of those steps, an incredible amount of work has been done to ensure that it cannot fail.
But if any step fails, there's no repair mission possible for at least a decade or more.
There's no repair mission possible, period. It only has enough fuel to keep orbiting L2 for around 10 years.
AFAIK there is the goal for NASA to work on a robotic refueling system, I don't know how official is that, but they have 10 years to come up with something.
If it does end up failing, and let's pray to Bill's god and others it doesn't, we're better off trying something else in a few decades, or something simpler and more focused sooner.
Congratulations to all involved.
There's also Arianespace's stream which is 6 seconds more current than Nasa's stream.
Time has passed while not paying attention, and it has actually launched. Well done to everyone involved!
180 days (6 months) until it starts working
There are some alternative links (YouTube, French, Spanish) on https://www.esa.int/Science_Exploration/Space_Science/Webb/W...
The cost of failure is so high you want to succeed at all costs rather than have the most advanced tech money can buy.
Edit: The person in question seems to have been Bill Nelson, former United States senator but now NASA administrator, the highest ranked official in NASA. Which makes this whole thing even more weird, should that person strictly be a person of science, not religion?
Edit2: Seems stream is over now, here is the exact timestamp for the speech/reading: https://youtu.be/7nT7JGZMbtM?t=7222
How about praising NASA, CSA, ESA and CNES for this brilliant endeavor?
I assumed it was intended for the American audience.
See, for example, the chart at [1], for the number of people who pray daily.
https://www.pewresearch.org/fact-tank/2018/07/31/americans-a...
Before 1957 the national motto was E PLURIBUS UNUM - One From Many. Too commie!
This was the same time that "under god" was added to the pledge of allegiance, which before just read "... One nation, indivisible"
I do wonder, do you feel the same about members of congress from the Islam religion wearing religious clothing, and symbols while conducting Official US Business? How about Jewish members?
Or do you reserve your offense only for Christians?
It is also telling you refusing the answer the question about other religion so I will go ahead and assume your like most and save your ire for only Christians making you a hypocrite in 2 ways.
So at the end of the day you are just bigoted against Christians, and are using secular desires as a cover for this bigotry, it is not religion that bothers you, but Christianity
So if NASA was headed by a Satanist, and they proclaim "Thank Satan" then according to mulmen that would be OK.
Given this context I am not sure how my claim is either ridiculous nor basless
> On Christmas Eve, December 24, 1968, the crew of Apollo 8 read from the Book of Genesis as they orbited the Moon
Seems no one was happy with what they came up with, so they ended up going with Genesis part from the bible instead. Not everyone was happy with that though:
> Madalyn Murray O'Hair, founder of American Atheists, responded by suing the United States government, alleging violations of the First Amendment
Ended up being dismissed by all the courts though.
But still, I cannot believe that people who are supposedly scientists start quoting the bible when they are themselves involved in maybe one of the greatest scientific achievements of our time. How does that resolve?
As atheist: even if you don’t believe in christianity, the bible is still a book with some stories that have made a massive impact and which can evoke deep emotion in many readers/listeners. Especially in such an emotional context as venturing out into space.
The people reading it were likely Christian. The majority of the people listening would’ve been Christian. The majority of the people that footed the bill would’ve been Christian.
Like others have said, you don’t have to believe in the existence of a diety to feel moved by words from some religious texts.
Personally I’d have appreciated a quote from any other text equally, but I’m going to assume that a US government official reading a non-christian text publicly might have effects on coming elections.
There is a ton of wisdom in the Gita.
https://michaeldevfay.medium.com/the-bhagavad-gita-for-athei...
https://michaeldevfay.medium.com/the-bhagavad-gita-for-athei...
The point of Gita's message is to NOT worry about karma and reincarnation.
After the Trinity test he went on to work for the US government for some years on nuclear weapons, which goes against the usual "what have we done?" sentiment that quote is meant to convey.
It may be confusing because of the attitude toward empirical science of some prominent strains of American fundamentalism (and the way the media often reduces that to a narrative of a fundamental religion vs. science conflict), but having religious belief about the metaphysical nature of reality and pursuing scientific understanding of its physical nature have often been things that go together. I mean, consider Georges Lemaître.
"A little philosophy inclineth man’s mind to atheism; but depth in philosophy bringeth men’s minds about to religion." - Francis Bacon
And for a clearcut example of this, Isaac Newton figured out calculus and classical mechanics, but also spent an inordinate amount of time trying to find secret messages hidden in the Bible.
Even as a member of a highly involved country (Canada) I can acknowledge that on this road trip, they're the driver of the vehicle and they get to decide what's on the radio.
It would be nice if the Americans were more considerate, but that's a general problem and not specific to this. (I kid, I kid).
I view this as quite progressive for a bureaucratic representative of the fed and an encouraging sign of the times.
You seem to be going out of your way to demonstrate your atheistic bonafides by expressing an affected ignorance of some of the most important texts in human history. Understand that these can be read as metaphors and many people find pleasure in the words and sentiments even if they don’t accept their literal truth.
However, Bill Nelson is an astronaut so he probably is the most qualified (politician) for the job. I’m sure he works hard to get NASA the funding it needs regardless of his personal beliefs (and it would be illegal to make atheism a job requirement). Aside from awkward speech giving I think most people are optimistic about how he’ll do as administrator.
Consider that the other, legitimately qualified people on that mission gave him the nickname "ballast" and it is widely regarded that the only reason he went up is by strong arming his way in since he had a powerful congressional position.
He is not considered a great NASA admin and it was pretty disappointing when he was chosen.
Both the entire text and the composition into the canon are pretty universally (within Christianity) considered divinely inspired (even by groups that disagree on what the entire text of the canon is.) The exact meaning of that inspiration and the degree to which it admits human error is...variable across different interpretations of Christianity.
The text of the decalogue as recorded—in more than one place, and not identically—in the Bible generally isn't considered any differently than the rest of the text. The text as it was inscribed on the stone tablets may be, but it's pretty clear that the human authors of the relevant Scripture didn't all correct their text with the tablets.
Thar actually depends rather strongly on whose understanding of divine inspiration you accept. While the term used is consistent, the range of beliefs as to what that term means is broad and extends the whole way to divine dictation.
> Of all the books of the Bible I can think of, none of them even claim to be divinely dictated - except for the ten commandments.
The decalogue isn't the only piece that claims to be directly quoting material that came directly from one or another person of the Trinity. (There's bits of the Creation story, the burning bush, and some other things scattered in the OT directly quoting the Father beyond the decalogue, and a whole lot of the NT directly quotes the Son.)
The decalogue is the only reference to a separate external document which was not merely divinely dictated by but written by the Hand of God, but it doesn't have any special claim of divine authorship beyond that of any of the other places God’s words in any form are quoted.
This is what is confounding you, or is offensive to you as an atheist? This one line from Psalm 19, which is just a consideration or an awe of creation? I would expect any competent and honest scientist to admit that they just don't know. This is the fundamental problem and fatal flaw of atheism, claiming knowledge that is unknowable. Not very scientific, is it?
Falcon Heavy does have enough capacity, but:
1. It was not really available for bookings when the JWST mission was planned and
2. even if NASA could choose again today, Ariane 5 has a track record of 106 successes out of 111 launches (107 out of 112 now I guess) and Falcon Heavy is still relatively untested with only 3 launches (all of which were successful, but still only 3). For something super critical you might want to go with old but dependable technology over the newest hotness.
Then one partial failure on 25 January 2018, and another consecutive stretch of successful launches, including today.
>"Faced with a grim record of 4 failures from just 14 Ariane 5 launches, some observers were starting to ask if Europe's 25-year-old rocket programme is more trouble than it's worth."
>"Although developed primarily for the commercial market, a new class of heavy-lifter rockets will also be used to launch the next generation of deep-space research probes, such as the planned James Webb space telescope, Southwood says."
https://www.nature.com/articles/420723a ("ESA weighs up future after Ariane explosion") [2002]
The idea of JWST was conceived around 1990, when Hubble was freshly flown into space and people started thinking about its successor. Development in earnest started in 1996 and JWST should have been ready to launch in 2007. This date was pushed back many, many times. (Much like with construction of nuclear power plants - megaengineering projects tend to suffer from this kind of slip-ups, cost overruns and delays.)
This means that the definite launch arrangements were done before SpaceX was the giant it is today. Space Shuttle was discontinued, so the most reliable rocket of that time simply won. This is no ordinary payload and you really do not want to lose it to launcher failure.
Don’t get me wrong: this is a mold-boggling complex device and launch. It’s an amazing technical feat.
But YouTube had a 720p stream. There was pretty limited video. After a few seconds it was above the clouds and lost to view so we were just watching animations.
Compare this to the first Falcon Heavy Launch. Synchronized booster landings. video from the Launch vehicle and of course Starman in the Tesla.
Say what you will about Elon, he can put on a show.
Anyway, I really hope the JWST well. There is still a ton to do and a ton that can go wrong in the coming months. The Launch is a massive milestone. Fingers crossed.
What the hell are you talking about. I have seen the launch with my kids and it's been the most awesome thing of the last few years!
> But YouTube had a 720p stream ..
This is ridiculous. This telescope is not a show, it is made for science, and they have made the right priorities by not spending on entertainment value.
If you spend more on marketing, you spend less on science. It's called a "budget".
>If you spend more on marketing, you spend less on science. It's called a "budget".
The snark isn't appreciated. Happy holidays!
The SpaceX launches broadcasts are made for largely uneducated lay people. No one should be entertained by that. They all feel like infomercials.