Modern "science" is like an AI prompt. It asserts all sorts of facts from a limited pool of data which continues to degrade from a vicious closed loop.
@@lightwoven5326 This is a crisis because it threatens to undermine everything we understand about cosmology. If we're wrong about this very fundamental data, something we've been building our understanding of the universe on, we've completely fucked up and everything is *wrong.* Thats why its a crisis.
I just want to say how awesome this episode was put together. The fact that you went through the new mirror and how the size matters for the resolution of things at extreme distance, which then helped to explain the crisis in cosmology... it all flowed very well. Nice! Edit: "My favorite toenail"
Its not so simple with the size, theoretically the bigger mirror the higher possible angular resolution, but in reality it depends on how the telescope is built and for what purpose and its combination of factors like primary mirror size, F-ratio and pixel size of the detector, Vera Rubin observatory will have much lower resolution than Hubble or JWST but it will have much larger FOV and will be much faster.
I'm so grateful to you and Fraser Cain for taking us all into the 'crisis in cosmology' so we can experience the cracking of a major scientific mystery as it happens. It feels like a real privilege.
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Thank you for putting into words how I feel! It's more intriguing than most of the mystery novels 😄
I truly believe that we are literally on the very brink of solving this problem within a few years. So happy to be a part of this breakthrough thanks to your coverage of this lol crisis. Not really a crisis as it were! Just another scientific conundrum to be systematically resolved. Go go go 😂! We got this! 😊
We already know the backup plan that is easy way to rescue the astronauts so yeah it's still interesting but it's probably not a crises. The cosmology crises is a really long running discrepancy and a lot of us sure find it interesting! My money is on physics/math/data/observations that haven't been made will fix most of dark matter/energy without needing so much dark matter/energy to understand our universe.
@@TheSkystrider It's just relativity. Einstein introduced the cosmological constant because relativistic math worked out that it would look like the universe was expanding if he didn't add a cosmological constant to balance it out. Then what do you know? Observations showed expansion. I think from a newtonian perspective there's less motion than it appears. But relativity is such that our perspective of space and time can change depending on where and when we are.
light speed is pretty fast. I'm thinking we're just proximating red shift wrong. I'm not educated in this field at all. But this stuff is all done on light or something proximate to light. So either the redshift estimate is wrong or our distance proximation is wrong. just watched longer in the video.... might just be too illadviced calibration on distances?!?... just watched longer and we are getting better estimates of distances soon. So either science is wrong or we are pushing our methods beyond theyre cababilities. Damn I like this stuff. Makes me feel dumb, haven't spent years on this stuff. Love it. Please make science inportant again!!!!!!!
YES!!! I've been saying this literally for decades. The interpretation of red-shift is ludicrous. The JWST has shown repeatedly that their Big Bang was most likely a Big Burp and that it just refreshes the local area of the Universe. The Universe is Eternal and Endless. Oh yeah, and the Multi-Verse is likely BS. Think of Raisin pudding. Each Raisin is what we think of an entire universe.
@@weldabar Nah. We just needed an update, but the owner decided to get something from StarBucks instead. Properly maintaining your virtual creation, or coffee? I think we all know what is more important😇
I want to say a huge _THANK YOU_ for your information on the Perseids meteor shower last month. I planned a trip around the peak, and it was one of the most spectacular nights of viewing I've experienced! Not so much just the meteors (I counted 22 in a span of ~2hrs, and they were amazing) but the auroras that covered the entire sky at some times, and were occasionally shades of red! It was magical, and I wouldn't have been there if I hadn't watched your video, so thank you so much once again! Cheers Becky!
@@fertilizerspikeYou also never need to go on any trips because someone has already taken pictures from there and posted them online. Not to mention what will happen to the number of "professionals" (often just passionate hobbyists) when first timers stop appearing.
Fascinating... Schools throughout should invite Dr. Becky for guest lectures/talks. Heck, even secondary/high schools. She can inspire so many young people to pursue science. Thanks again!
Great idea! How about Zoom?? Or this video series for astronomy! We used PBS shows (Nova, Washington Week, etc.) In some our classes when I was in highschool. Progressive school.
In my opinion you are the finest science communicator on RU-vid and some of your peers are excellent as well. Sagan would be delighted so many have taken up his mantle.
The dispute about the crisis in cosmology is a classic case of "don't trust any statistic you haven't forged yourself". Working at the edge of statistical significance is always in issue in my opinion as it becomes very important what the exact process of assigning an uncertainty is in order for that number to support the claim you purport it to do.
Let’s hope Sunita and Barry can get home safe and soon! Always enjoy your upcoming astronomy info and do my best to follow the rest. Love your presentation enthusiasm!
On how much light a full moon can cast in a dark, rural location - I'm in Jamaica, so the moon crosses overhead not that far from the zenith compared to Canada or Europe. The winter full moons are always very high, especially around the solstice, and several times I've hiked out of the bush at night after bat fieldwork without bothering to use my headlamp. It's magical. All black and silvery white, no colours.
I must resist the obvious joke about the moon being high in Jamaica. Seriously though, that's really cool. In rural Europe the full moon also provides a lot of light, although its elevation varies a lot with the seasons.
There are colours, they're just below the ability of the human eye to perceive them. If you take a picture with a sufficiently sensitive camera, the image will show the same colors as in the daytime. The Moon is essentially grey, and so moonlight is just dim sunlight. The Moon is about a million times less bright than the Sun.
The color detectors in our eyes are a lot less sensitive than the brightness detectors, that's why it looks black and white. The mooon isn't bright enough for your eyes to tell color. (look up rod cells and cone cells if you're interested in a better explanation).
@@朕是神 Yep, I know all about that. But it's what I perceive hiking in the bush under a full moon, not what an owl would see (I believe they may have four types of cones like most birds - wish I did).
Starliner - the 737max for space travel! Who's better at spotting problems - NASA or the FAA? Who's more disappointed of their earlier trust in Boeing - NASA or the FAA?
Look ... it's NOT a headache!! Brilliant people are doing their best to tease out the properties of nature here. The whole thing is a wonderful academic adventure not a strain!!! I wish I could be part of it.
I really appreciate that any time the crisis in cosmology (or other topics covered previously) come up, you still provide an explanation. Even having watched the channel for a while now, I still need refreshers to help all the info sink in.
The return without suits was discussed as an option for Crew-8, i.e. the vehicle that is currently docked, if they need to escape the ISS in an emergency before Crew-9 arrives. With Crew-9 they'll have proper suits.
@whocares2277, also don’t forget that Crew-9 can’t dock because Starliner is using its parking space. And they can’t undock Starliner remotely, someone is to go in it and do the undocking maneuver from inside … and then hold their breath as they fly back to the Space station, like Dave in 2001: A Space Odissey.
21:56 You really needed a bulletin board like detective movies behind you with strings connecting all the people and studies because I just sat there nodding sagely pretending like I understood all that.
Last Monday morning at 630 am A full moon was beginning to set in the west and the sun was risen to nearly exact height in the east . I was driving directly west and the moon was right in front of me and the sun was perfectly behind me shining on my rear view mirror,. Too cool! I'm in eastern Ontario
For the trapped astronauts, why can't they just send up two extra space X compatible spacesuits, so they don't have to make the return trip spacesuitless? Just get their sizes and send up two with the ship that they're (maybe) coming home on in Feb.
Thanks also for presenting other topics at the start of the video... It's good to know that today's astronomy is not all about Hubble tension and finding universal quantum gravity equations
What is more interesting than the science, is the fascinating lecture by Dr. Becky to explain it to us mere humans. Really amazing vid. The outtakes; Priceless!!!! 🤣
My wife bought me a copy of your book for xmas, after I had read it three times I donated it to Barter books on the sly. You now sit amid your peers in your favorite book shop.
Deeper still - how do we know what we think we know is correct and, if so, to what degree is it correct and how soon will we prove it to be incorrect? The Pessimistic Meta-Induction.
We are this close to a resolution 👏😁 Such an exciting time to be a space nerd!! 😂❤ Thanx Dr. Becky et al to be 😎💯 lmao that's the best thing about cats... They don't bark! Scientifically brilliant 😂
On Starliner, my understanding of the press conference for the contingency with SpaceX Crew 9 is that if NASA opts for the contingency, only 2 crew would launch in Crew 9, and Starliner crew woukd become the other two crews of Crew 9. On the space suit, Crew 9 would bring up the two additional space suits required, and no additional risk would be present at that time. The problem with the space suits is between the time Starliner undocks uncrewed and the time Crew 9 docks. In that period, Crew 8 would be the contingency in case of an ISS emergency, and certain emergencies require a space suit they don't have.
Whatever your level of scientific expertise and understanding this is the freshest thing I have seen on RU-vid & pace of delivery WOW- that said YOU NEED TO WATCH until the very END - outtakes OMG you are a natural!!
So... the Hubble telescope has observed 42 galaxies, you say? Don't panic... just make sure you know where your towel is, and keep your copy of the Guide handy. 😁
I like your videos, lots of information. You could make an entertaining video of just your bloopers. You really enjoy your profession and it shows, like you, and keep the information coming.
philip k dick was a fxcking genius. Highly underrated imo. he was like the stephen king of scifi except he was not on coke or perpetually long winded in his writings
Yep it's all just up there doing it's thing but I so enjoy Dr Becky explaining some of what is happening and I am so appreciative especially the bits I understand. Thankyou
Oh‚ this is definitely a first world problem. 99.9% of the population does not care that we have the wrong value for the universe expansion rate by 10%. For us‚ it may mean that we are at the precipice of either a huge breakthrough or the collapse of our current models‚ but for everyone else‚ well‚ "this is fine" indeed.
Boeing's "its safe" perspective on Starliner has never changed and is the perspective of Boeing Management. The question is "how safe". Nothing is ever 100% safe and NASA has number of how safe a spacecraft has to be to fly humans. That is a complicated and often controversial calculation (called a Risk Analysis and is often based on an FMEA). I imagine this is what NASA and Boeing are working through now. Also, after the Challenge Report, NASA added a technical review to the process for determining whether a spacecraft is safe to fly or not. Boeing management seems to still want to follow the "trust us" process even after not fully disclosing/addressing the issues from their previous Starliner flights.
It would be a pretty substantial well, to reach *liquid* (i.e., pump-able) water. Just how deep, we needed those geothermal (areothermal) gradient measurements from Insight to estimate. But with average surface temperatures below -30degC, multiple km depth seems likely.
Your enthusiasm for the topics and the news is such a breath of fresh air. You can truly tell you love your work, and you love explaining it to us crayon eaters. Keep it up, we await all the new science you can provide!! I have to laugh though, I keep imaging the two groups like the separate news stations in Anchorman squaring off to fight.
space x can't go into space. it's not an actual space ship, just a very high altitude re-usable missile. none of the billionaires have built actual space craft, just glorified missiles for ultra-rich tourists to go up to the edge of the atmosphere and come back down again.
That is exactly what is being worked on. There are so many considerations: from letting Boeing save face (yes, someone still cares about that), to how fast a Dragon can be made available with the required minimal crew, all the way to finding and/or making fitting spacesuits based just on sending down measurements (they're all pretty bespoke after all). The fact that Musk is actually NOT constantly crowing about it (compare his disgraceful behaviour during the Thai kids-in-cave drama), is a fairly clear sign that things are happening behind the scenes. I can't link references on YT, but you can go to Ars Technical and read the options in a number of their articles. Including a tongue-in-cheek one that reports on retirees in Russia(!) shown hand-wringing about why the Motherland doesn't come to the rescue. 😹
They would. She made a small mistake, as the suit-less scenario would only happen if an emergency evacuation occurred during the period of Starliner being undocked and Crew 9 not yet having arrived. In that case, they would be passengers on the currently docked Crew 8 capsule due to return in October. If no issues occur, then they would take the Crew 9 capsule and wear the two spare suits brought with it.
@@michaelhoffmann2891 "to how fast a Dragon can be made available with the required minimal crew" That isn't what they're doing. This isn't a special flight. This is the long planned (and slightly delayed) crew-9 rotation flight. They're simply replacing 2 of the crew on that mission with Butch and Suni. Two of the seats will go up with empty space suits, they'll spend 5 months on ISS, then the 4 of them will come back in Feb.
I think the main problem is rooted in the basic assumption that "cosmological redshift is caused solely by the Doppler effect". If some astrophysicists can find an alternative mechanism that contributes more significantly to the cosmological redshift (such as a new type of "scattering of light" phenomenon in the outer space, where the amount of scattering is proportional to the distance between the light source and us), this may be able to solve the problem.
Cosmological redshift isn't caused by the Doppler effect. It is caused by the expansion of space stretching the wavelengths as the light travels through it. This has little to do with the peculiar velocity of the galaxy when the light left it which is what causes Doppler shift. Redshift continues to increase the longer the light is in transit because space continues to expand.
@@stargazer7644 I'm aware of that alternative explanation, but it is also based on the assumption that "the universe is expanding". I wonder why most of the astrophysicists do not consider non-expansionist mechanisms that may cause the redshift.
@@williamschlosser Yes, once I watched the recording of a presentation given by Halton Arp on his "quantized redshift" model. His work and some other unorthodox works like "plasma redshift" model should be reconsidered more seriously by the astrophysics community these days, especially when JWST's new observations pose new challenges to the standard cosmology model.
Boeing is teaching us a lesson. We need more space companies, we need to find something other than rocket tech and finally that large corporations can't be trusted to do important work for they have the money to play fast and loose with the rules.
BOEING is not the problem, it is every executive and engineer tied to McDonell-Douglas that should be given their walking papers including their financial ties to BOEING. There is a reason why this company never were trusted by military contractors, but still managed to give them a try anyway….which was like hiring the same company and expecting a completely different result. IM SURPRISED BOEING HASN’T PUT A HIT ON ME YET…perhaps this might REFLECT on their incompetence in multiple ways and their SUM OF ALL FEARS.
@@jasonv2203 Uhm, then Boeing is the problem after all. They are a corporation first and foremost, caring only about their shareholders and profit margins, not quality and safety. It's not just one man but the entire board and management are complicit, hence it's a company issue from there... It may have started with a single man but now it's part of their corporate system, it basically has cancer.
Go woke go broke!!!! Boeing is a disaster, but instead of going after the incompetent woke Boeing CEO's compensation the authoritarians when after Elon's compensation. people need to wake up. Wokism codified as DEI pits people against each other based on race, gender, and sexuality. The employees no longer trust each other and start fighting. The very worst people rise to the top as they scream they are victims.
Great video as always! I'm hearing a bit more of a echo-y and "hollow" sound than before, just so you know. It once again sounds like the new studio before it was furnished.
In the summer on Cape Cod, over the Atlantic, I have seen starshine on the water. So indescribably beautiful. It is _thrilling_ to hear about a water reservoir underground on Mars! The possibilities stagger my tiny mind. Dr Becky's enthusiasm is unflagging. And she has such happy cheeks.
Excellent capsule summary of the current status of the Hubble tension problem; thanks for organizing all of those papers for us. -Tom (fellow astronomer)
Used to live by a fjord in Norway where we had no artificial lights if we didn't want to. So I could totally see the supermoon! Especially since the moon lined up with the fjord on its brightest 😮
Hmmm... reminds me of when I was able to read by the light of the full moon(s) in Monteverde, Costa Rica, back in the day... That is also where I had the privilege of seeing moonlight rainbows (aka moonbows).
I know the part of Boeing that builds space capsules isn't the same part that builds airplanes, but considering Boeing's track record over the last few years... would YOU believe them when they say "oh, Starliner's perfectly safe"?
Thanks for all the news, dr. Becky! 😊 But yeah, someone must have made a mistake there... The issue is going to be to discover it. 😬 Anyway, stay safe there with your family! 🖖😊
Great presentation of the Hubble Tension. I hope somehow gravitational waves can be added to this for another perspective. As always we are dependent on the accuracy of the observations and the inherent limitations of each type.
So Becky when are you going to talk to us about the upcoming Major Lunar Standstill? I'm surprised you haven't already, it only comes around every 18.6 years.
