Webb Hit by Micrometeoroid - DON'T PANIC!
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- Äas pĆidĂĄn 16. 05. 2024
- The James Webb Space Telescope was damaged by micrometeoroid for the fifth time since it was launched. Debris strikes like these are expected, but this recent strike was larger than anticipated this early in its mission.
00:00 Webb hit by micrometeoroid
01:02 Are micrometeoroids dangerous?
02:13 This was larger than anticipated. Or tested for.
03:24 How the damaged mirror was corrected
04:49 Did they image the mirror?
06:00 How Webb will survive space
08:39 Should they have shielded Webb even more?
09:24 The telescope that was shot by a gun
10:07 Instrument commissioning and First Images are coming!
11:00 Thanks to my Patrons!
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đŽ Webb mirrors are aligned! czcams.com/video/E-pNS5mDExQ/video.html
1/2 wits at NASA dragging out deployment while WEBB is being bombarded by rocks.they could have taken 20 million pictures but the morons are just dragging it out...THEY HAVE LOST THE CHANCE TO TAKE any pictures while mirrors were intact. they should be fired.
Please explain to me how this is an "okay thing."
It's only been open for a couple of months, why can we not extrapolate this to a constant degradation?
It seems like a huge design flaw. Hubble's mirrors are encased.
I was real worried about Webb until you mentioned the mirror with bullet holes only losing 1% of its capacity.
right? "oh. bullets dont stop it? well then... not so much an issue as I thought..."
Actually less than 1%.
107 inches to 106 inches it's about -0,93%
Safelite can patch up that while you are on your lunch break.
Unless that 1% is the exact point that you are observing. So there have been 5 total impacts since JWST has been in place and operational. Or a better way of linking at it. The JWST is averaging one impact a month, for now. I see the JWST as being positioned in a shooting gallery. I personally do not see the JWST as viable after two years. I am being realistic not hopeful. In a year at this rate the JWST will see at a minimum 12 impacts. I do not believe the JWST was designed with this high of an impact rate.
It's possible Aliens fire with bullet on JWST
Launchpad is such an good space channel, probably my fav.
Thanks :)
Itâs my fav too!
Keep these great videos coming!
Wow, thank you David!!!
Thank you SO much for not resorting to a terrible click bait title like "JAMES WEBB HIT! - IS THE MISSIONS SCRUBBED!??!"
I really appreciate it
I'm a somewhat recent subscriber. This channel has great production value and your delivery is on point. Congrats and thanks!
Thanks, and Iâm happy to have you along for the ride!
I loved this video not only for the great explanation of the issue, but because of the "DON'T PANIC" printed in big, friendly letters in the title. đ
omg the last fact about the telescope that got shot at thatâs soo crazy but also so
impressive how they manage to work despite the damage
Thanks again Christian for your clear explanation. As always I look forward to your updates.đ
Finally a channel that brings information without making the title/thumbnail seem dramatic, subbed
An honest thumbnail and title is refreshing.
I love the redundancy that has to be added to space missions. Makes me think about real life sometimes
Elaborate
@@temerodiavolo470 obviously of a good idea is good then it should (after it has been proven good) be placed in a frame of calculus. In calculus they even try to figure out whatâs going on in places that they donât even really care about. Maybe math is more fundamental than we thought.
Thanks Christian.
Hope your situation with your back is better.
I'm feeling much better, thanks!
@@LaunchPadAstronomy very glad to hear it!
This channel deserves more subscribers. You guys explain the details eloquently and go straight to the point. Donât stop making such quality content
Thank you so much đ
with all the over exeaggerated clickbait headlines und thumbnails one would have thought webb was utterly destroyed. this is such a rarity. calm, collected accurate and thorough reporting. basically anti clickbaiting with a killer thumbnail on top :D
Really appreciate it, thanks đ
If image quality is expected to degrade over time, does that mean theyâve front-loaded the most important observations for early in the scopeâs life, or at least those requiring most sensitivity?
Seems so. Waste of hype and money to me.
@@transformsupportedaccommod553 they hyped "watching early universe" from the very start
Space time is totally different than earth timeâŠ.that thing will be crystal clear for lifetimes
@@MaRkYWaHoO Smoke some more of whatever you got it appears pretty good.
I have never stopped being amazed at this technology. Love your channel!
The Hubble Space Telescope has a two inch hole drilled through its main mirror. During the mirror's manufacture a tiny imperfection in the glass was discovered that could have started a crack that could have eventually spread across the entire mirror surface. Drilling the hole eliminated the imperfection so that it couldn't develop into a crack. The light gathering ability of the telescope was reduced somewhat but Hubble had sufficient extra capability designed in and has performed extraordinarily well for 30 years.
So...basically...
Webb is more than just fine.
@@preds43 Yes. A lot of what you've been hearing about the mirror being smashed by a huge space rock is just over-sensationalized fake news.
okay, best channel i've seen so far covering this news
Bravo Christian.
So many YT channels have been hyperbolically exaggerating the impact of the err impact which,of course and somewhat ironically,reflects badly on their image.
I knew you wd stay cool and resolve to stay focussed on the big picture.
I've noticed the same thing. One report said that the main mirror was hit by a "space rock" that "smashed" into it. Another report showed a rifle bullet being shot through the mirror.
The debris is smaller than a grain of sand which still left a permanent damage. Now Imagine other micrometeorites/debris that will hit JWST in the span of its lifetime. And it will withstand many of them. The engineering of JWST is remarkable.
You should look at this from a ballistics standpoint. The entry wound is always much smaller than the internal damage and or the exit wound.
Yes, Big waste of money and time
Actually, you hope it will withstand many of them. Whether it will or not remains to be seen.
Thank you so much for this explanation. This channel and Everyday Astronaut are the best space channels on CZcams.
I forgot Astrum. The trifecta of space science videos!
I'm honored to be mentioned in the same paragraph as those channels. Thank you!
Much respect fo all the ones worked to this project. It's immense, the applied ingenuity.
and wasted so much money...Thank you again
What a great explanation, it really eased my concerns on this impact, thank you!
Iâm so glad it helped!
Was hoping you would do a video about this incident. Thank you for this ;-)
Hope you enjoyed it!
Great description! Subscribed!
Thanks and welcome!
I already watched coverage about this, but I had to support this video for having a thoroughly non-gotcha title and thumbnail. Well done sir.
I've been waiting for your video on the topic (micrometeoroid impact). Launch Pad Astronomy is a bright start of popular science đ€©
Thank you!
Can't wait for the stream!!!
Great explanation, thanks!
GOSH.....'LPA'.... you do Such a GREAT Job in explaining JWST, I'm close to becoming a ' Patreon ' going to be using this vid as part of my explanation during Our " Hosting Party " in Downey, CA.
Great Work and narration.
Thanks, I appreciate it!
I knew about the accident but I did not about the damage. Your explanation healed my anxiety.
Thanks Christian.
I'm glad it helped :)
Really dig your channel brother. Your video's are always so well done and you clearly do your research and keep lazer focus on the topic. Nice change from all the others making quick lame click bait video's. Also LOVE the thumbnail on this. Hilariously accurate.
Thanks man, I really appreciate it!
Canât wait for the first pictures!!
10:44 Nice reference there. đđ
Looking forward to the live stream on July 12! :)
Saw This A Few Days Ago On NASAâs SiteđąBut,Expect Those Things To Happen,They Hit The ISS,and Hubble..You Just Said It Too,lol..Still All Good And Ready To Start Poppin Out Images,Thank You Christian,Have A Great Rest Of Your Sunday,Stay Safe,and God Blessâ€ïžđđ»âšđđ
Sorry, I'm still panicking. Tiny sand grains, small(ish) telescope, BIIIIG space, it all spells disaster to me. I got a tiny tiny scuff on my watch glass after 8 months and I'm still in grief-stricken denial, so I can't imagine what you guys must be feeling.
And while I'm here - 10:43 loved the StarWars reference.đ
They knew this was going to happen
@@jomon723 I know, and I am feeling a bit better about it now. I'm taking every day as it comes, baby steps, my counsellor is happy with my progress. I just hope the 'next' scratch happens a long time from now.
I like your video quite better than the take of Anton petrov on the same topic that was a bit too misleading in title and thumbnail to my liking. Good job
Really glad you enjoyed it! Anton does good stuff but I confess I haven't seen his video yet. Will take a look.
IMO Fraser Cain didn't do a great job explaining the situation either, particularly when he kept flashing a graphic with the C3 segment covered with huge cracks. Talk about misleading!
I found Dr. Becky's video to be one of the better ones. And this video is the best so far.
Thumbnail is gold
Best astronomy channel, period.
Thank you so much!
I reckon they noticed some new diffraction effect on very bright objects from the edge of the impact site. Given JWST is looking at dim things, I reckon that diffraction artifact will be below the noise floor
greatest thumbnail ever!!
Thank you.
CHRISTIAN!!!! JWST and I have a lot in common!!! We both will age gracefully, although I have a head start!!! Awesome video as always!!! CHEERS my friend!!!
Thank you, my friend!
mirror shatters? no formless reflections this time! As ever Christian you've left me hungry for the next instalment, my thanks for expanding my brain.
Thanks Pete. Our crack team of engineers are hard at work right now getting everything just exactly perfect :)
So if a mirror segment gets off-pointed in order to remove its contribution, it's still going to be pointed at SOMETHING. Would they continually re-point it so that for every target, that mirror segment points toward something dark? Or would they just defocus it?
Iâll definitely stay curious đ§
That thumbnail is incredible
Glad you did the video, the net gets so much hyperbolic and curaizee these days you go from MISSION FAILURE, to alien trying to destroy the telescope conspiracies. Peopel ahve no idea the amount of crap its floating out there so the chances of getting hit by a big one are really small. I think the best comparison is tiny hole cracks in eyeglasses, you can still see through them no problem, hell crack them and you can still see no problem unless it really begins to shatter.
Thank you. I figured I'd do my little part to stay in reality :)
Panic? No way. I've got my towel and my copy of The Hitchhiker's Guide to the Galaxy.
Now there's a guy who really knows where his towel is.
C3 also has an arm bar across its face for the sensory camera mounted above all the mirror segments; i am really glad webb is o.k. and soldiering on. I have the first image as my desktop wallpaper, cannot wait to get some real colors going on july 12~
What are the ârealâ colors in infra red?
đ
@@executivesteps spectrum.
You are superb. Congrts
Thanks đ
Lil rock in space: - waits 4 billion years -
2021: - JWST launches -
Lil rock in space: "My time to shine!"
2:47 wow that test impact photo scares me
I love this channel
Omg this tech is so mindblowing I can't stop commenting ahahah wow science is beautiful
I wish I somehow got to see the JWST in person before it got launched
Same here. I keep thinking how ridiculous that this isn't the big news every morning?
I'm sure there's a replica somewhere or will be đ€·đ»ââïž
Love the Monte Python thumbnail! đ
less lovable if you consider the reference.
If the particle hit with high speed, the fact if dust accumulates or disperses at L2 is pretty unimportant to the particular case, right? It had to have come from afar and probably did not get disturbed much by gravity around L2 would be my intuition.
I approve of the Monty Python reference in the thumbnail.
Amazing work, able to create a mirror with abilities to cancel out impacted areas and re-create then bond the image again as if it was never impacted? Correct if wrong but damn, this some some:
It can't cancel out impacted areas, other than moving the entire segment so that it no longer points at the secondary. They'll just work with slightly degraded data until it becomes necessary.
OK, camera is complicated. But couldnÂŽt the add a few microphones to the structure?
Maybe they so could monitor the area of the impact and even the severity?(not only for the mirror)
How about fuel tanks? Even if they self-seal, could they take a 2mm hit at 5km/s? Also, could you tell us how they detect hits to non-optical segments?
And things are still going smoothly :)
That bit about the observatory in Texas should be mentioned a lot more, given the relevance to JWST..
Definitely the best space & science channel in CZcams!! Very Informative and the explanation is easy to understand. Keep up the great work đ đâïžđȘđđ
Thank you Brandon!
Very interesting. I'm interested to know if the space station and astronauts are also effected by Micrometeoroids?
Yes, micromedioroids hit spacewalking astronauts at an average of one impact per day with a fatality rate of about 21%. It's unfortunate, but a necessary sacrifice to keep our dreams of real life Halo alive.
@@bristlethistle7456
Thatâs a bunch of bs.
This makes me sad. Hopefully we still get some good pics.
As a geologist, I consider "sand" as particles between 62.5microns to 2mm (0.0025in to 0.079in). If one was to assume spheres of density 2.5g/cm3, and only vary the particle size while keeping the velocity constant (for the sake of a "back of the envelope" experiment), it's a pretty big range of kinetic energy.
Yeah, it's pretty nasty out there.
@@LaunchPadAstronomy I don't think "ouch" would quite cover it if hit by something...
LIGO, the gravity wave detector got its first detection after only three days into its operational phase. Since then, it doesnât detect black hole/neutron star collisions EVERY 3 days.
Too much is being made about this event.
Launch Pad Astronomy â€ïžđ
A disgruntled employee/astronomer in the USA in the 50âs or ages ago shot his rifle into the primary mirror of a pretty large telescope at an observatory MANY TIMES. the mirror had chunks taken out of it. So the plans was swept up and the telescope is still used today and itâs perfectly ok.
Just a question⊠if a protective cover had been included, there is no way whatsoever to bleed off the heat being trapped by it??
I feel like that wouldnât be a hard obstacle to overcome, yet perhaps Iâm being naive.
There are good reasons not to enclose the telescope.
1. You'd need a rigid enclosure consisting of two layers (a Whipple shield). This would add a lot of complexity: it would have to unfold along with the telescope.
2. The telescope is limited by the available payload and volume. Adding a heavy enclosure means the mirror would have had to be smaller.
3. An enclosure would increase the temperature by making it more difficult to radiate away the heat, making the telescope less sensitive. We've operated telescopes without an enclosure before: Herschel has a 3.5 m unprotected mirror.
A 3.5 m mirror with enclosure is about the limit of what fits on current rockets. A mirror that small is too small for the science goals of JWST, making the mission pointless.
It feels like as if your favorite child who is in a far away prestigious boarding school has been hurt there. Now You know the kid is gonna be ok but still you are heart broken to hear that your child was hurt.
After years of waiting it would be pretty frustrating if it got disabled
I was literally expecting this, like ironically as a joke. Poor telescope had so much bad luck, I'm surprised it didn't blow up in the launch. I've been excited for this telescope for too long, I'd cry if it died.
it never had bad luck it had setbacks. Getting hit by a meteor larger than expected is bad luck... stay +
@@geemanbmw they dropped it 2 days before launch
I feel like a bad human. With all the sad news in the news over the years Iâm pretty numb to it. But when I woke up and read JWT was hit by something. My heart sank. I was gutted.
I just heard about this on Reddit.
What if A5 was impacted instead? Would that have been worse? If I could have chosen which mirror would have been hit it wouldâve been the one that was just by looking at the beast of a telescope
I saw a few channels discuss this and, frankly, it was good coverage. But I was totally waiting for the LAUNCH PAD ASTRONOMY scoop on the matter (lame matter joke attempt). This channel never disappoints and is the most thorough by far. You get a gold star (lame stellar joke attempt ).
You're so very kind, thank you!
So, a deranged scientist in Texas (go figure) shot a telescope mirror but the telescope was fine in the end? Come on Christian, you can't keep me hanging like that. Why did they decide to shoot the mirror? Is it a Texan thing or what?
Also, great video as usual. As soon as I heard the announcement the other day, I knew you would soon set the record straight with what was going on and how the telescope would perform post impact. Also thanks for explaining why JWST mirror's don't have an enclosure. I figured it was because of the added complexity of trying to enclose a folded mirror but I never thought about it holding in the waste heat from the telescope.
Thank you, Cody. I'm really glad you found the video helpful. As for why the guy shot the mirror, evidently he suffered some kind of psychotic break and first fired on his supervisor (who wasn't killed) before trying to shoot the telescope mirror. Apparently when he realized he wasn't shattering the mirror, he started hammering at it before he was tackled and disarmed. Good thing he only hurt the mirror!
@@LaunchPadAstronomy Wow, that is quite the interesting story. I agree, I am definitely glad that no one got hurt and the telescope was able to go about it's business without too much loss to it's performance.
Again, thank you for all you do for the science community.
đ just for the thumbnail
I'm concerned that they may have miscalculated how frequently debris are going to hit the telescope, seeing the first impact and the mission has hardly started. I hope my concern is unfounded.
This meteoroid is a statistical outlier. We've had spacecraft at Lagrange points for decades, including one with an unprotected mirror (Herschel), so we have a decent basis for statistical models. What we don't have is a complete map of all meteoroids down to sub-mm sizes, so statistical modelling is the best method we have for predicting impact frequency.
@@h.dejong2531 I appreciate the work that has gone into trying to understand and mitigate the risk. When most of what we can see in the universe is either very close to us and big or far away and self illuminated, statistical studies don't give me a ton of faith in what the future may hold. I'm very excited to see what is discovered using this new tool! I hope it has a full service life!
On a side note, I always wonder when they talk about dark matter, how many dark "solar" systems there are where the would be star never gained enough mass to self illuminate. It would be funny if there were many more dark systems than illuminated ones, but we just can't see them.
Something new to ponder over if the "Oversized Webb", Luvoir telescope, ever gets launched. With a gigantic mirror, it will be a sitting duck for impacts.
Wait, JWST is a shape shifter? Spooky action at a distance.
With the telescope being so sensitive to heat, and the impact generating some energy, I wonder how much an impact impacts the functioning of the telescope in that sense.
A tiny amount of IR is generated, yes but then it radiates away :)
"Stanley, the Alien kids from down the wormhole are throwing rocks again!"
There is a typo at 9:50, difference in meters would be around 2.72m -> 2.69m
DuhâŠyes I duz maths. Thanks for catching that!
I'm still really sad that we'll never see the James Webb at its full potential, even though I know it can perform its job fine going forward.
thickos at NASA dragging out deployment while WEBB is being bombarded by rocks.they could have taken 20 million pictures but the morons are just dragging it out...THEY HAVE LOST THE CHANCE TO TAKE any pictures while mirrors were intact. they should be fired.
I knew this was gonna happen anytime soon
"A scratch? Your mirror's dented."
One would think they thought of this... Or is this like that scene in "Those who wish me dead" movie, where lightning strikes the firewatcher and ruins the tower as if it was the first lightning to ever have occurred on the entirety of the planet?
did you even watch the video?
When the guy shot the mirror and it went from 107" to 106" don't think that it just "lost an inch" sqrt(107^2-106^2) = ~14.6 square inches lost from those bullet holes, apparently.
Trapipist 1 is what I want 2 know about from JW telescope. It's time to get some news
Waiting for this vid..
Hope you enjoy it.
glad that didn't change much
I love Monty Python. Nice reference.
It can't be too bad, since they don't even know the day it happened.
I love the modernization of the "tis but a scratch" meme! Rather enjoy the settle humor
Is just a small scratch. It will keep going strong.
I thought the impact would have caused quite a big thermal event that could be pinpointed ?