@18:42 is the most concise and enlightening visualization on how red shift distance calculation works. Amazing!
@rachel_rexxx3 ай бұрын
I love that you have such an excited audience that I'm watching the like counter increase in real time. Yay nerds!
@asadhalim36243 ай бұрын
Here's another like for the collection! 😊
@knerdknight91093 ай бұрын
I consider myself more of a knerd.
@just_kos993 ай бұрын
I'm a geek, tyvm.
@lsmith63782 ай бұрын
Be careful what you say. There are other things it could be
@SpudicusMaximus3 ай бұрын
Lol, the second you started mentioning that you are not a rocket scientist. I thought to myself, 'Time for a colab with Scott Manley!'. Then a second later you drop his name. Too funny.
@aurelienyonrac3 ай бұрын
Same thought😅
@michaelsommers23563 ай бұрын
Manley is not a rocket scientist or engineer, either. He is a software developer.
@WilliamNeal-Sr3 ай бұрын
@@michaelsommers2356 Scott Manley is also a DJ and a gamer. Kerbal Space Program started his channel. I love when my favorite KZbinrs mention each other.
@michaelsommers23563 ай бұрын
@@WilliamNeal-Sr But he's still not a rocket engineer
@WiwatChang3 ай бұрын
KZbin suggested me Dr. Becky AFTER watching Scott Manley for years ;-)
@bryonmartin84632 ай бұрын
One thing I enjoy about your channel is your excitement when new discoveries challenge current knowledge. So many others seem to fret.
@melkorWTF3 ай бұрын
May be the saying "If it's Boeing I ain't going" should also apply for rockets and space.
@manu-tonyo96543 ай бұрын
Maybe don't live in a sound bite culture
@marko13953 ай бұрын
@@manu-tonyo9654 Boeing is lethal garbage these days.
@gaius_enceladus3 ай бұрын
@melkorWTF - Yeah, it's sad the way that Boeing has slid downhill over the last few decades. It used to be a good company, way back in the days of "if it ain't Boeing, I ain't going"! Very different now though.
@mozismobile3 ай бұрын
"If it's Boeing I'm not coming back?"
@zachvalue3 ай бұрын
If you speak out about Boeing, you're definitely going!
@panamafloyd14693 ай бұрын
Stoked that you shouted out to Scott Manley. I'm a spaceflight fan in the US, and that man's channel is amazing.
@PopeLando3 ай бұрын
Dr Becky: Nasa has plans to keep Hubble operating through to the twenty- Me: ...second century?? Dr Becky: ...Thirties. 😢
@chrysanthemum82333 ай бұрын
At that point it'll be 40+ years of service though, long enough for anybody to earn an honorable retirement.
@cykkm3 ай бұрын
@@chrysanthemum8233 Voyagers have been in service since 1977, for 47 years, and are still going. Some instruments have failed, some still work, yet others have been switched off to save power: their doom is the limited life of the RTG power supply. Not saying that space is extremely solar‒panel‒friendly, but the Hubble's solar panels are in a better shape than Voyagers' RTGs.
@Fred-yq3fs2 ай бұрын
For now, Nasa does not want to order any repair mission. As Scott Manley explained, Nasa has updated the command and control software for Hubble, which allows the telescope to work with one gyroscope and other instruments, albeit with less operational availability for science work. That's the current plan. I believe they should be bolder and ask Space X to execute a repair mission under a fixed cost contract.
@MusicJunky33 ай бұрын
I was also fascinated by the nail polish which deserves a mention I thought 😊❤ Shine on Dr. B 😍!
@genkidamatrunks67593 ай бұрын
Spotted that Milky Way strip last year when I was out in the boonies. It was beautiful.
@DuncanHolland3 ай бұрын
That's the best 'Night sky News' you've published for a while. Thanks.
@DrBecky3 ай бұрын
Thanks!
@ahcapella3 ай бұрын
@@DrBecky Dr. Becky, did you read the comments written by *@kevin_hainline* (the person who first found GS-z14-0) in this comment section? He has some important corrections to certain things in the video.
@nickymay98872 ай бұрын
This is a great time of year for astronomers in the southern hemisphere. Long clear nights and the centre of the Milky Way directly overhead. The only problem is the cold - even flying boots don't stop your feet from freezing!
@CMansfield3 ай бұрын
I still think it’s amazing the light we see actually made it through the labyrinth of everything solid between the thing producing the light and our telescopes. The farther away the more amazing that is.
@wstavis31353 ай бұрын
There's actually hardly anything solid anywhere. Even where there is, it effect is to bend the path of the light, not block it. Mostly
@TheWabbit3 ай бұрын
As a kid in the 60s I could see so many stars and planets with the naked eye, now the area has grown so much and I moved 15 miles closer to Detroit Michigan and you cant hardly see anything because of the light pollution. Hopefully here in a couple months ill be moving 35 miles south/west and we'll be in the country, we still will get the light pollution but nothing like my current residence.
@lilahsadventures57173 ай бұрын
I live in Australia and I am so grateful for what I can see every night and not to mention the gorgeous view of the moon during the day also. I never forget that I am on this wonderful planet looking out. 😊
@marcusdirk3 ай бұрын
Fascinating - thank you once again!
@PieterPatrick3 ай бұрын
Going on a short vacation to the southern hemisphere is number 1 on my To Do list.
@WildBillCox133 ай бұрын
3:22 the plane of the Solar Ecliptic. Beautiful.
@edwardmedina12363 ай бұрын
That galaxy came pre-aged (Good Omens reference there) at the beginning.
@wstavis31353 ай бұрын
I actually wonder if there might be something to this. Roger Penrose advocated something similar with his theories.
@kurt70203 ай бұрын
As a science communicator - it may be worth future-you pointing out the Earth's seasonal tilt is only an apparent tilt relative to the Sun, due to the position in our orbit. I.e. the position of the celestial pole (North Star approx) does not change with respect to the seasons. As a kid, being told seasons are due to the Earth's tilt, I always imagined Earth tilting back and forth through the seasons - It does not. Great vid. Love the channel. Big fan. Cheers!
@melanieannplans26663 ай бұрын
I love how informative your videos are, especially since I'm not an astrophysicist by any means - just seriously interested in the topic! Also, the Windows 98 background - so nostalgic.
@raydenn60273 ай бұрын
The view of the night sky in June, July and August is magical here in Perth Western Australia. The cold nights (for us) make extended stays difficult. My Personal favourite winter constellation is Scorpious..
@vsikifi3 ай бұрын
I have seen Uranus with naked eye. But I needed a telescope to spot it first so I could know exactly where to look. I tried it for Neptune too but that one I could not see.
the issues with Starliner can probably be summed up with one word Boeing. when you said Hubble was old at 32 I was hurt, I remember when it started sending images. Burping sun, I get like that when I have fizzy drinks
@the0wl0v03 ай бұрын
As an absolute layman, I'm likely to be way off here - please feel free to explain what I'm missing....here's my question regarding the formation of "the oldest galaxy" featured here.. Assuming the big bang did happen the way described in literature where the universe expands at a rate unconstrained by C, creating the fabric of spacetime in the process, why is it assumed that time runs at its currently observed rate, or even uniformly? It is known that time passes at different rates around planets, and the extreme warping of spacetime around massive objects such as black holes can cause time dilation. So, what could result in a more extreme warping of spacetime than it's very creation? When it's said "our models can't explain how something could be so evolved in X years," are they accounting for the fact that, if even for a portion of the object's existence, the "local" time could have been running at a very different rate with respect to the other regions of the universe thus resulting in the object/region in question being further evolved than expected? Please let the inevitable holes in my understanding be filled, it's bugging me! :-D
@shawndunlap7143 ай бұрын
It's great to see you again, I'm Shawn from Miami Florida ❤
@barrymickelson11842 ай бұрын
With the number of Galaxy's discovered there has to be life out there.
@waryinzero3 ай бұрын
The universe is much older than what is theorized. It's the simplest explanation as to why we are observing such massive structures emitting light from 13.4 billion years ago.
@olasek79723 ай бұрын
it is explanation that has no grounding in science, contradicts observations
@ianw78983 ай бұрын
Really? According to whom? And how 'massive' are these distant galaxies? Hint: about 1% as massive as the Milky Way.
@williamschlosser2 ай бұрын
@@ianw7898 According to Dr. Becky, among others. She says the galaxies JWST found are "very bright, more massive than we thought possible".
@ianw78982 ай бұрын
@@williamschlosser Really? Want to deal with the papers on the furthest galaxies detected? Like I said, they are ~ 1% as massive as the Milky Way. Care to tell us of anyone sane who thinks those galaxies contradict the big bang? How is such a person now explaining the CMB?
@williamschlosser2 ай бұрын
@@ianw7898 How do you explain the Axis of Evil, which contradicts your interpretation of the CMB? Dr. Becky seems to be in agreement with a panel of experts who pronounced the galaxies found by JWST as "too many, too bright and too massive" for BBT. "JWST's Cosmic Revolution, 2024 Isaac Asimov Memorial Debate.
@timmorris89323 ай бұрын
So I thought you might find this interesting. My son is off to scout summer camp tomorrow, and he will be taking the "Space Exploration" merit badge while he is there. One of the requirements for the merit badge is that you have to make a trading card for a space explorer/pioneer. He picked you. Did a good job too. He does have a couple of backup cards created as well though. "Laika and Ham" and Yuri Gagarin. So I guess he thinks that they are in good enough to be in company. 😊
@yomogami45613 ай бұрын
thanks for the information dr becky as always really appreciated
@warrenpeterson60653 ай бұрын
I am a proudly self declared space geek who wishes he had a fraction of Dr Becky's knowledge and experiences. I'm Canadian. I grew-up on the US border and remember seeing the northern lights as a kid. Of course those days are long gone with all the light pollution. I now live inland in a dark zone and absolutely love it. I have a decent large telescope and spend my nights searching with a few treats and a few Scotches. Retirement is good!
@manu-tonyo96543 ай бұрын
Cheers Doc, always a pleasure :)
@avl19893 ай бұрын
"It's getting old, it turned 34 years this year" ouch Becky, ouch!
@Life_Is_Torture00003 ай бұрын
You're very good at making the science understandable. Keep up the good work!
@preferredimage3 ай бұрын
So that galaxy detected is only 300 million light years (using 'only' as a relative term here!) from the known edge of the universe?! thats crazy close!
@maconcamp4723 ай бұрын
The universe is awakening!!!😮 It’s getting juicy!!🍋🍊🥭🫠🍎🥝🍇😳🍓🍉🍒😋🍑
@behrhub70523 ай бұрын
Given the recent solar storm data, do you believe we should prioritize developing advanced radiation shielding for Mars missions, or focus on other aspects of space exploration?
@bengoodwin21413 ай бұрын
Becky doesn't specialize in that sort of thing, so probably not the best person to ask.
@brianmckay12563 ай бұрын
As charming as ever, Great delivery!! Thanks Dr Becky
@davidharris37283 ай бұрын
Even though hubble is out-living its life expectancy, which is really cool, it's still sad to think it won't be around forever and that it may be closer to its expiration date then we'd like to hope. Excellent video keep it up. Also, you're really pretty!
@davidpax3 ай бұрын
T Cbr better wait until the sky is darker... 💥
@lancewalker58953 ай бұрын
Thanks for another great video Dr. Becky. How do we know that the universe is expanding at the same rate everywhere and how do we know that the rate hasn't slowed down or speeded up over time?
@reeves50003 ай бұрын
Last year I thought a couple galaxies were found to be 17B LY and 21B LY, using gravitational lensing.
@trespire3 ай бұрын
To quote Grandmaster Flash "Don't push me I'm close to the edge, I'm trying not to loose my head". That galaxy is so red shifted it's almost in the IR !! 13.4 Billion light years is WAY out there on the edge, blows my mind. WEB is a stunning success so far, worth every Dollar - Euro. Watching WEB lift off on Ariane-5 was emotional and hugely satisfying. Great reporting Dr. Becky, much appreciated.
@tomt57453 ай бұрын
Interesting effect on Mars due to the lack of a proper magnetic field. Read about if before, but did not know about the implications.
@robertjackson93263 ай бұрын
Hi, Dr. Becky. I've watched your videos for years, but have rarely (if ever) replied. That said, I find your knowledge and solid presentations of new discoveries at the forefront of astronomy and cosmology strangely consoling in these seemingly atavistic times of human evolution (Homo Ignoramus Imbecilicus?). In any case, science in general and your intelligent interpretation of objective reality is, somehow, a great comfort. So, thank you for that. Let us hope civilisation survives for a decade or two.
@davidstuart44892 ай бұрын
Thank you for mentioning Scott Manley - he's excellent as well. As for the most distant galaxy at 13.4 billion light years away - it's unlikely that galaxy still physically exists, isn't it? In fact, I wonder what percentage of everything we observe in the cosmos has a relatively low liklihood of still existing, physically? We know with absolute certainty that nothing we observe exists as we observe it. Nor are their positions in the universe the same as we observe them - relative to Earth, and relative to each other.
@TomMS3 ай бұрын
Wow that expansion effect on the hydrogen absorption is really cool. I'm a little surprised the expansion velocity of the hydrogen molecules doesn't affect their absorption wavelength. Maybe it does, but because of its shape, not in the same way as the photon?
@richardcarbery70353 ай бұрын
Roger Penrose figured out why these galaxies existed so quickly after the "big bang" a long time ago.
@timmymeredith74993 ай бұрын
How certain are we the Galaxy is 13.4 billion light years away that's amazing to me how big do you think the universe is I'm beginning to think there's no end. your channel is one of my favorites Dr Becky
@bjornfeuerbacher55143 ай бұрын
No one knows how big our universe is. Could well be that it has no end.
@phdtobe3 ай бұрын
Who else is not surprised that the BOEING Starliner had so many defects on its maiden voyage. 🤨
@animusadvertere33713 ай бұрын
I don't understand how redshift alone can determine the age of an object. Surely it must depend not only on spacetime distance but also on relative velocity? I.e. Wouldn't very old and moving away be more red shifted than very old and moving towards us?
@abundantabsurdity70853 ай бұрын
Hmm.. boeing had a couple doors fall off, few wheels blow away, poor maintenance schedules as well as improper holes and tape being used... well, they should be able to make a spaceship, surely!
@MCsCreations3 ай бұрын
Thanks for all the news, dr. Becky! 😊 I think the last time I watched the skies that late (early?) I've seen something I can't explain... But as I don't believe aliens travel in dancing light strips... Well, I don't know. 😂 (Perhaps it was lack of sleep, I have no idea.) Anyway, stay safe there with your family! 🖖😊
@inganeer3 ай бұрын
Since solar radiation necessarily hits the daytime side of Mars, and since Mars has no magnetic field to push that radiation around, how does the planet get auroras on the nighttime side?
@Delatta19613 ай бұрын
Hi Doc Beckey. Can you talk a little about any visible comets this summer?
@SAJe_533 ай бұрын
Given all of the Boeing airplanes falling apart both on the ground and in flight, how did they get the astronauts to say "OK, I'll ride this thing into space.?"
@williamschlosser3 ай бұрын
The assumption that redshift equals distance and velocity is disproved by photos showing visible connections between low-redshift galaxies and nearby high-redshift quasars, meaning they are at the same distance from Earth. You can see such photos in Halton Arp's "Seeing Red". Arp theorizes that active galaxies expel high-redshift quasars that lose redshift and become galaxies as they move away from the parent. It's very interesting that the JWST image shows two galaxies apparently next to each other, with greatly different redshifts, which is consistent with Arp's theory.
@EBDavis1113 ай бұрын
It's not an assumption, and there are no such photos. Halton Arp has bene thoroughly discredited.
@williamschlosser3 ай бұрын
@@EBDavis111 Have you looked at the photos? Or are you like Galieo's persecutors, who refused to look through the telescope? Laypeople can look at the photos and judge for themselves.
@EBDavis1113 ай бұрын
@@williamschlosser "Laypeople can look at the photos and judge for themselves." Obviously you can't and get it right.
@williamschlosser3 ай бұрын
@@EBDavis111 The "discrediting" of Arp included an accusation that he engaged in "pathological science". That reminds me of George Orwell's "1984", where anybody who dared question the party line was considered insane. Does anybody with a strong argument need to engage in pseudo-psychological smear tactics?
@EBDavis1113 ай бұрын
@@williamschlosser "That reminds me of George Orwell's "1984", where anybody who dared question the party line was considered insane." That's ironic, because here you are suggesting that anybody who dares criticism your idol is an oppressive tyrant. " Does anybody with a strong argument need to engage in pseudo-psychological smear tactics?" Did you ever consider they had a strong argument, and thus the justification for the criticism?
@cykkm3 ай бұрын
z=14.3: possibly the Eddington bias is under-accounted for in the model? Unfortunately, this cannot be experimentally rejected before a sizable population of such objects is observed; a sample of size 1 is kinda too small…
@tonyppe3 ай бұрын
I think about now we're beginning to see that the universe is not 13 or 14bn years old but probably much, much older.
@ianw78983 ай бұрын
Did the CMB just disappear?
@patchvonbraun3 ай бұрын
We're running a radio-astronomy summer camp for highschool seniors and uni undergrads. In preparation for that we're taking spectra along the milky way in the first quadrant, in order to provide an exercise for the students to plot the rotation curve and see the evidence for dark matter. Unfortunately, this means a few very-late nights at the observatory :(
@mrcryptozoic8173 ай бұрын
Once every 54 minutes? That makes it a knuckleball star. Time to rename it.
@lachezarkrastev71233 ай бұрын
Yeah redshift 20 - good luck with that :)))
@BayoHunter3 ай бұрын
So that galaxy far away. Does it exist any more or are we just viewing a mere shadow of it's light?
@neoanderson73 ай бұрын
Yeah, that Starliner.. talk about risking things.. Doubt they'll continue if they manage to get those guys back anytime soon.. lol (I think they did come back already? I have to check.. :-) ) Your expression when the dog barked! lol
@straagzthemc46143 ай бұрын
Dr Becky, wouldn't light have to travel along the ripples of gravitational waves meaning the distance light travels is actually considerably more than the distance between us and that galaxy meaning that it actually isn't that far away?
@therrdon18413 ай бұрын
Assuming that neutron star is sending a magnetically formed beam, is it possible that it is precessing so that the beam only intersects us every 50ish minutes
@beenay2123 ай бұрын
It's also the case that days are their shortest when the earth is at aphelion. I'm referring to the total day length from sunrise to sunrise.
@stargazer76443 ай бұрын
How does that work?
@Architect-jg8cn3 ай бұрын
Couldn't there be galaxies even further away that are not visible to the naked eye, where the light waves have stretched into infrared?
@jaym82573 ай бұрын
This stuff breaks my mind. So if a hypothetical JWST was in orbit around earth 3 billion years ago would the light from this galaxy have been detectable? And would the light have been shifted 3 billion light years in the other direction?
@JV-mw7gv3 ай бұрын
For the first part of your question, the answer would be no it would not be visible, as the light would not have reached us yet. However, if it’s older than what we think, it may indeed have been observable. And now mind is broken too. At least I’m in good company.
@santyclause80343 ай бұрын
I think the Hubble Shift rubber band's in the other direction when you knock off 3Bil light years of expanding universe worth of acceleration toward the cosmic horizon. The shift away from us is not a direct 1-for-1 proportional ratio of increase. So knocking off 3 billion years of universe increasingly shrinking away, is going to shift the straight line path of light to a shorter space-time horizon interval than a simple subtraction of X = 13.4B lya minus 3B lya, just for arguments sake: 3Bil L.Y.A. teh same galaxy might praps be just 9Bil light years distant from the observer (or sumfink).
@jaym82573 ай бұрын
@@santyclause8034 I love to hear Brian Cox talk about the observable universe. There is that galaxy another 1 billion light years past this old galaxy with light we've not seen and may never see.. Surely this is not the oldest object ever. I'm sure the physics will be updated at some point.
@jaym82573 ай бұрын
@@JV-mw7gv I then suspect that at some point in these observations, a very, very old red shifted galaxy will just pop up for the first time on the telescope.
@WildHair12 ай бұрын
@Dr. Becky, I have a silly question: How do the charged particles from the Sun end up on the night side of Mars?
@judychurley66233 ай бұрын
Re: solar radiation on Mars.Why send astronauts, given expense and danger, given the quantity and quality of the data gathered by the rovers? Manned missions are expensive and dangerous; what science would be done that rovers and orbiters cant do?
@ruperterskin21173 ай бұрын
Right on. Thanks for sharing.
@justinkruger3 ай бұрын
I can't keep track on the "Distance Record," It would be more interesting to know if there was a distance at which we would learn something profound. Or if one of X age would confirm or reject some set of theories.
@ericberman41932 ай бұрын
Dr. Becky: Question: when viewed from Galaxy JADES-GS-z14-0, how does the Milky Way look?
@theGRUBmaker3 ай бұрын
I have never seen anything close to that like the image at the start. I really need to see it before I die... =)
@marcelpost40523 ай бұрын
It feels to me that it's only a matter of time until we find a galaxy that we think 's 13.8byo. Then what..?
@isaacplaysbass85683 ай бұрын
Dust.... always dust! Thank you Dr.B.
@stusue97333 ай бұрын
Wait, no magnetic field to funnel the particles but they light up the night side?
@michaelogden59583 ай бұрын
13.4 Billion (with a B) years ago. Light traveling at ~186,000 miles per second for 13.4 Billion years. Hard for this mere human to comprehend.
@MrJdsenior3 ай бұрын
I know there are theoretical physicists looking at primordial black hole formation, and one theory currently being worked on is a model for a direct gas to black hole crunch, with no star formation in the interim. If that is possible (BIG if), it certainly seems to me that creating large galaxies out of that same heavily dense material, at some density/energy phase level, should be possible. Probably I just don't know enough to be bothered by very early, highly complex, large galaxies, but I'm not bothered.
@symmetrie_bruch3 ай бұрын
not a single word on noctilucent clouds? we´re in peak right now.
@go-farm3 ай бұрын
So how is summer warmer if the sun is further away? 🤯
@christopherconkright13172 ай бұрын
I am no astrophysicist but the early stars were huge right? if they were bigger maybe than we thought. Would they not super nova quickly? Super nova's pushes the gas closer together forming more stars as this process happens space spreads out stars get smaller etc. That is how i would look at it. The expansion of space gives me the feeling of an explosion wave. Like when a volcano erupts and the sound comes towards you. Space its self could be that expansion wave so stretching idk its hard to explain Also we always look towards the start of the universe what if we look the other way? Do we see kind of what the future of galaxies look like? since those galaxies have been traveling longer? I don't even know if you read these.
@FrederickHopkins-xb6me3 ай бұрын
What's with Boeing and quality control?
@ptemps11453 ай бұрын
You said there were two galaxies in that picture with the new potential record holder. Is the putatative record breaker's higher-than-expected brightness possibly because of a gravitational lensing-type phenomenon?
@williamschlosser2 ай бұрын
Or maybe it's because both galaxies are the same distance from us, and redshift doesn't equal distance and velocity. Wouldn't it be quite a coincidence if two galaxies, millions of lightyears apart, appeared as we see them in the photo?
@dubsed3 ай бұрын
Few questions... 1. I thought Hubble was designed to be serviceable. Does it really cost that l more to upgrade it than to build and launch an entire new space telescope? That or can it be upgraded with the same parts as the NGRST? 2. Without being funneled there, how to charged particles get the dark side of Mars to form an aurora? 3. Without being able to resolve significant structure, how we you know the galaxy is made up of stars as compared something else like very hot glowing nebula?
@michaelsommers23563 ай бұрын
The Shuttle doesn't exist any more, so you can't get to it, or get new parts to it, to service it. Nebulas don't glow like that all on their own.
@olasek79723 ай бұрын
Hubble was designed to be serviceable and was serviced a few times, it doesn’t mean capabilities to service it will exist forever
@marksommerfeld14453 ай бұрын
could JWST have seen even further if it hadn't been damaged? How negatively was it's capabilities impacted by the damage?
@olasek79723 ай бұрын
read NASA’s report on the subject
@gkichok22 ай бұрын
I understand how the Aurora can travel down the magnetic fields here on Earth and be seen on the night side, but how do the Sun burps reach the night side of Mars? It looked as thought the particles where perfectly even across the quarter of the night side of Mars? Is it from Mars passing through the charged particles as it orbits the Sun? I would have guessed the burps were moving to fast for that to occur so evenly? Are the images of the Aurora on Mars from the forward face of Mars as it orbits the Sun?
@MikeJones-gx1gs3 ай бұрын
What about the small body objects passing earth today
@johnduncan51173 ай бұрын
Great video. I have a question about this business of galaxy formation in the early universe that I've never seen addressed, probably because there's a simple answer. Which is - supposing this galaxy is really seen as it was 13.4 billion years ago and the big bang happened 13.7 billion years ago. Then what we observe is a galaxy in a much smaller universe right ? So the the matter out of which our galaxy formed was much much closer to this older galaxy at the time, and everything in general was much closer together. Then it's kind of understandable that formation happened much quicker, since gravitational forces were greater across the whole universe ?
@martiansoon90923 ай бұрын
Does the nearer galaxy make microlensing effects on this far away galaxy? That may add some brightness to the mix.
@thomasjearson31933 ай бұрын
Can gravity have an theorhetical influence on redshift?
@Khantia3 ай бұрын
About the JWST discovery... Could the galaxy be closer, but have a high "local" velocity, at a direction 'away' from us? This should also shift the light it emits. Or would that velocity be negligable compared to its "space expansion" speed?
@saiqawaseem94433 ай бұрын
Can you please react to "animation vs physics". It covers mostly astronomy!
@snufkinmatt1623 ай бұрын
Why would charged particles coming from the Sun hit the night side of Mars?
@Chromeman3 ай бұрын
Nights? Have a faint memory about that... I live about 50 km due south of the Arctic Circle.
@klocugh123 ай бұрын
Cmon, Doc, you can't just leave doggo tax unpaid like that!
@garypalmer9973 ай бұрын
But we don't know the expansion rate of the universe, so how did they determine how long the light been traveling?
@michaelsommers23563 ай бұрын
Red shift.
@AKNeal813 ай бұрын
Armchair astronomer question: how do we know that the dust detected around that furthest galaxy claim is the traditional dust you were talking about and not possibly a dust created by the Big Bang itself? I get wondering how said traditional star death dust is baffling to imagine around such an early galaxy, but couldn't the dust detected be from that first of first explosions? Appreciate any insight! Thanks!
@bettyswallocks64112 ай бұрын
Hubble is not too old to still be actively dating galaxies!