Dark matter: smooth or clumpy?! | The Dark Energy Survey Results!

[@danielstandley-Physicist]

My 8 year old daughter wants to be an astrophysicist. And once told me she would solve dark energy one day. And she likes watching to your videos

[@vigilantcosmicpenguin8721]

That's a smart 8-year-old.

[@Laura-S196]

I also want your daughter to solve dark energy

[@thishominid871]

I hope that she sticks with it and loves math and coding. Someone needs to do it.

[@niyatibrijesh8961]

Haha i want to be an astrophysicist and I'm already planning

[@LeftCoastStephen]

I look forward to reading about her success in 20-30 years. At 65 I doubt I’ll see her get the Nobel for physics as that doesn’t usually happen until much later in a person’s career.

[@sailorgeer]

Dr. Becky is a national (International?) treasure. Making highly complex science accessible and understandable to all in a way that is engaging and fun, all without talking down to the audience. Great work and keep it up :)

[@orange-rose07]

Sure, she is an international treasure as the whole world is watching🌠

[@rjonboy7608]

The whole world is benefitting from her wonderful ability to talk so plainly about her love. There are many cutting edge physicists but most of them can't teach a college physics class without mumbling and five syllable words. Dr Becky speaks so clearly and articulately and breaks down the jargon into anecdotes of their own that it's easy to forget this is learning.

[@rogerwilks6250]

I love Thursdays, another Dr Becky upload and another full week of thinking about it! keep em coming Becky!!!!

[@gamersheheryar8770]

True

[@michaelsommers2356]

Imagine if this had been done 40 years ago, and all the data had to be transported via 9-track tapes. Three tapes for each image.

[@alexischatterley]

Your videos just makes me more and more excited to start an Astrophysics degree in 2022.

[@DrBecky]

🥳🥳🥳

[@godsbeautifulflatearth]

God help you come to your senses.

[@karabomothupi9759]

@@godsbeautifulflatearth what do you mean?

[@andrewmorton9683]

@@karabomothupi9759 Assuming you're not aware of the "please don't feed the trolls" guideline IRL, the previous correspondent is obviously an instrument of the fallen angle [sic], as even the "documentation" they refer to elsewhere says the planet Earth is a sphere. Also, please ignore the trolls.

[@wolfmanjack3451]

@@godsbeautifulflatearth,Is Mars flat? Are any other planets besides Earth flat? Are you claiming that the sun is flat? God is slapping you upside the head,you need to listen.

[@fishnsyd]

I so appreciate you taking the time to digest everything before making a video! Just as DES did all their checks on the data to make sure it’s accurate, you did your homework to give us only the best information!

[@AlexanderTome]

Loved hearing Dr. Amon speaking about interdisciplinary cooperation in astrophysics. I feel like that’s so important to unlocking the potential of our new detection abilities.

[@TonyM1961]

It's going to be difficult to achieve since some of the disciplines tend to regard each other as adversaries rather than contemporaries with both trying to answer the same basic questions, just through different means and methods. Then there are those who guard their work extremely jealously because they are afraid of someone "stealing their idea" and possibly their shot at a Nobel. Sadly, they're not without historical evidence of this happening. It boils down to people need to become willing to set aside their desire for personal aggrandizement in search of a deeper understanding for all humanity. The different fields have so much to offer each other IF they can set aside certain fundamental philosophical differences. Although, in the end, it ALL comes down to mathematics and our understanding of the mathematical correlation of one given thing to another. For instance, how does quantum entanglement REALLY work? We know that it happens and even have direct evidence that it DOES happen... but how and why? There HAS to be a mathematical correlation between the two particles, but what is the relation, how is it formed and why is it formed? Deep questions that I think will need the combined efforts of astrophysicists, quantum mechanics engineers... possibly even string theorists. VERY different disciplines and very different ways of looking at a problem. My thought is that it's basically the old trope about the blind men and the elephant. Each trying to describe the animal based on their own area of observation without being able to combine them and get the whole picture. Once they figure out how to set aside their differences and personal animosity, start trying to see how the data from project A can possibly work together with that of project B and get answers that, while seemingly going against all current models, actually present a much better understanding of the larger questions. For instance where Dr Becky, in a different video, talks about how two neutron stars merged and the resulting explosion turned out to go against every single model of what SHOULD happen based on our current understanding of physics. Talk about turning science on it's head, wow. Turns out that there WAS an answer, it just needs to be looked at from a different perspective than had previously been used. I really hope that they can learn how to "take the best from all sides" and perhaps form an entirely new discipline... which would potentially put us a step or two closer to the ever elusive Grand Unification Theory

[@JM-us3fr]

Never before have I more wanted a number to be greater than -1 than right now.

[@mvts1]

Wow hahahhahaha

[@Sanquinity]

@Train 2noplace All I will say to this is just because we don't know now doesn't mean we'll never know. Remember, only a bit over 100 years ago it was still thought impossible for humans to fly. In that INCREDIBLY short time span we've been to the moon, and are fairly regularly sending remote controlled robots to Mars. Not to mention a long lasting presence in space in the international space station. Who knows what we'll discover in the next 100 or even 1000 years?

[@alancash6420]

"Space is hard, words are harder" - you're not wrong Dr B.

[@Cyberplayer5]

That should be Dr. Becky's Tag Line, LMAO.

[@feldegast]

get a mug made! with a good image :D

[@vigilantcosmicpenguin8721]

Yeah, words are very, uh... you know, just...

[@gamersheheryar8770]

@@vigilantcosmicpenguin8721 they are just hard

[@DrBecky]

I have it on a tee in my merch store if you want one 😂 I feel like it's my life motto

[@imgingergiraffe3731]

I am always just blown away to see how far we've come in understanding our universe. Thinking back just a decade or 2 really puts it into perspective.

[@watchison1]

Totally agree. Give us a digested view rather than the newsline. We want what you think. Thank you. You rock.

[@Ataluta]

thank you so much for putting all you do in layman's terms. you make it so succinct and accurate. truly. we need more educators that are you but we don't.

[@Ataluta]

I'd like to point out to everybody else... putting this in layman's terms... IS NOT EASY.. The editing and the script work that went into this. I appreciate so much. you MUST have done your work and research in order to tell us reptile brains what is really going on. I love your channel so much!

[@DrBecky]

Thanks Travis - this one was a bit difficult! Glad to know it’s appreciated

[@NandR]

The big rip theory would make a great sci fi plot. We have to get into another universe because ours is ending. But our bodies are not able to exist in their universes physics. So we have to scramble to find a universe that can sustain us. Before the molecules in our universe are no longer held together.

[@SuperStriker7US]

Because of how long it would take for our universe to end, it would be at least billions of years after we figure out how to do that (if it's even possible) that our universe would be destroyed.

[@EnglishMike]

The Heechee Saga by Frederik Pohl was written before dark energy was even theorized, so there's no big rip, but the concept of surviving the big crunch does play a role in the story. (No more details to avoid unnecessary spoilers.)

[@arctic_haze]

It would need to be ridiculously quickened to become movie script stuff. But Hollywood can do such things. Remember "The day after tomorrow" with frozen New York and temperatures decreasing in days by what they would in years (if not longer) in a real rapid climate change scenario?

[@lagomoof]

In the balloon analogy of space expansion, the Big Rip is the balloon popping... so we need to stop whoever's blowing up the balloon with four dimensional air. Yeah. Definitely. That's what we have to do.

[@jonsirulesx9929]

Sounds more like a horror story 😉

[@TheRealBrotherGrimmy]

Dr. Becky, thank you so much for making content. Your enthusiasm for space is so incredibly contagious! I just can't help but get excited when I see a new video. Thank you so much for it all!

[@samhustles]

I'm a huge fan of this content

[@DrBecky]

Thanks!

[@FredPlanatia]

So am I. Its a time of excitement for anyone interested in astrophysics and cosmology. You do a great job of translating the big themes into language understandable to us spectators. I really appreciate these interviews too. They highlight the people doing the science. Their excitement is infectious (can one use that word in a positive light? - I hope so!)

[@jimc.goodfellas]

So many great channels that focus on this type of content, awesome stuff

[@debbiep4213]

We love your show. Keep up the good work.

[@bendodds9840]

This woman is an idiot paid to deceive you, earth is flat.

[@Ford750]

Love that Trinidad accent, was so used to hearing it in my house growing up. A cracking interview too !

[@Biomirth]

Amon is Trini?

[@vigilantcosmicpenguin8721]

Ah, I was wondering what that accent was. Interesting, seems like there's a lot of Indian influence, which makes sense.

[@DrBecky]

Yep, she's from Trinidad & Tobago, did her PhD in Scotland and now works in the US!

[@davidgermain]

"Space is big really big, you think it's a long way down to the post office...." #dontpanic

[@kenmccutcheon4527]

I watch a lot of your KZbin videos and I don't think I've seen you more excited than you were discussing this one. Keep up the good work

[@onebylandtwoifbysearunifby5475]

Great to see Cosmologist who looks like she's on a rollercoaster, when parsing new data. (And this is indeed exciting👍).

[@reywashere5284]

0:51 "We'll get to what actually is dark energy later on in the video" Every Astrophysicist on Earth has entered the chat.

[@uncletrashero]

dark energy / universe expansion is probably just Photon Decay

[@sakkthisundaram7578]

I cannot tell you how excited this got me!!!!!

[@Khannea]

SUDERAMMMM SUDERAMMM ... Shakthi Degi Kali Maaaaaaa

[@sakkthisundaram7578]

@@Khannea hahah! delighted

[@issafacelift]

I found your channel yesterday and have been eating, working, sleeping, and just living with your videos in the background. 🙃

[@pranali2218]

This video was really an answer to all my questions...I love watching your videos cause it doesn't make me refer to other material to understand them😀

[@coldbacon4869]

Man I have such respect for these people. It’s gotta be so annoying to think you made progress just for 1 or 2 values to change and then you must question almost everything about what you thought you know. And they just keep on going.

[@jeromebloom_gripcraft6031]

Really good concise coverage of such a big subject! Very excited to see where our knowledge is in another decade or so!

[@AdrianMcCay]

Great video! Just finished my undergrad and missing physics already, so I needed this. Thanks!

[@gregherringer7700]

I'm gonna share this with my friends who have young daughters interested in science. What an excellent exemplar of two brilliant, passionate communicators sharing their love of deep, deep science - who happen to be women. Great role models!

[@duderoony]

Another excellent upload Becks. I’ve always been captivated by the pros and cons of how the Universe works so, even though I don’t understand all you put out, I really enjoy listening to you do so. Thank you for another one babe. 😊😊😊

[@Candesce]

I love these videos about dark energy. I returned to school to start my degrees in astrophysics and computer science because I want to study dark energy. I actually have a back of the napkin theory about dark energy that I'd love to test mathematically.

[@alwaysdisputin9930]

It's not "God farted" is it? because that's my idea. IT'S MINE. Seriously though, good luck. We need more scientists because of the space spiders

[@jacobharris5894]

I’m also majoring in astrophysics. I’m about a year and half out from finishing my degree. Then hopefully I can get accepted into grad school somewhere. Good luck.

[@Candesce]

@@alwaysdisputin9930 Haha, I thought of it first, back off :D

[@nancyvaughn4303]

Just found you and plan to binge. Dig this!!

[@baptistebauer99]

Thank you SO MUCH for the incredible summary! I don't know how you were able to read 30 research papers in a week, on top of working and making this video - this is truly impressive. Research papers are _hard_ to read (I guess it's your field, but still).

[@icannotcomeupwithanything4609]

Hello, this is not really relevant to the video but I just say a couple of things. My name is Julia and I am currently thirteen years old. Which I suppose it is bit unnecessary to mention my name or age for this comment. Anyway I want to say is thank you. I was always really interested in space for as long as I can remember. I always look forward to these videos on your lectures and latest space news. Honestly I never knew what to do with my life (carrer wise) until I started watching your videos. Now I know Astrophysicist is my calling. 🙂

[@williamb4652]

Do it.

[@BramSenders]

I believe in you! I wish you a wonderful career with many interesting discoveries ahead! 😄

[@gushy7438]

Do it ! Maybe some day you will tell us how to travel to other stars. I admire you !

[@Klipse11]

Make history!

[@asw654]

yeeeeaaaaaaa, your enthusiasm for this subject mirrors my own. I don't see enough of it on youtube!

[@halyoalex8942]

Didn't see this in the comments yet... "69% Dark Energy" "Nice"

[@Tetrahedragon2]

The universe definitely has a sense of humor.

[@bradmitchell7182]

My thoughts exactly seems fitting for our time period

[@dougg1075]

Super nice:)

[@michaeldean4712]

I was looking away from the screen at 16:09.

[@uncletrashero]

dark energy / universe expansion is probably just Photon Decay

[@jasonmuller1199]

We also think Christmas comes early when we watch your videos thanks Dr Becky

[@Depressed_Dinosaur]

Great work Dr. B, and to all the DES teams! Thank you to all. I'll be patreoning you soon.

[@rogersledz6793]

Thank you so much for uploading this video. It is helping me get through the pandemic!

[@playgirl7305]

Dr. Becky and Dr. Amon look so young. As a house wife and mother of 2, I wish I could have been one of them and still explain try to explain to my husband what I really do at work. He always talks about his job as 'assistant manager' at his father's secondhand car company.

[@Kualinar]

The «Dark energy» is called that way precisely because we don't know what is causing the Universal expansion to accelerate.

[@orange-rose07]

Its so amasing that you give us professional rewiev on latest news in astronomy. ❤ You

[@ByronLina]

Great interview - can we have more interviews! In a similar field to Dr Amon how about Prof Catherine Heymans, recently appointed Astronomer Royal for Scotland.

[@karlichbin6016]

Not only do I feel educated more about the universe, I'm happy it's Dr Becky that's the one teaching me, because Einstein was merely a genius, Becky is a genius AND beautiful.

[@heavyecho1]

BBC: 1 Astronomy programme a month hiding somewhere in the schedules. Dr Becky: Two KZbin uploads a week 284 thousand subs

[@mickwilson99]

A lovely exposition of how actual science is done. Methodological adjustment in light ( pun noted) of observation. This smells to me like cosmology going from collecting finches to considering means of biological evolution, or from alchemy to Priestly and Dalton. Keep it up!

[@cytonicstarspren4384]

Was waiting for this!

[@Fortune090]

"Wait... I haven't commented on this yet." -Me, just now.

[@coralguymike3801]

My twelve-year-old daughter watches every video you put out you've inspired her and she wants to become an astrophysicist or cosmetologist I believe your videos play a big part in her mindset thank you Doctor we appreciate you and all the work that you do

[@Grepoan]

I could not stop laughing and saluted you when you posted the "2.1 sigma for stats nerds". I had paused the video to compute this in my head- I was wrong, but still happy to "feel seen" by your annotation. I salute you!

[@MichFedorchak]

Dear Dr. Becky, could you post just your video feed of the the interview with Dr. Amon, your reactions were priceless.

[@NolePTR]

I know this is weird, but the way you say "idear" reminds me of my grandmother. She wasn't British, but Southern, but you say it the same exact way. Thanks for bringing back good memories.

[@drewharrison6433]

I just imagine physicist in a couple of hundred years looking back at our ideas and saying "How did they not get this? SMH."

[@IsomerSoma]

Dark energy will be 21th century version of aether.

[@fivish]

They will still be coming up with nonsense to justify their research grants.

[@ricardodelzealandia6290]

Can't believe you got to this before Anton. He's normally on the ball.

[@mgroot]

Thank you for your videos! you make it much more understandable for us astro-physicists! When I read the news about this discovery, I couldn't wait for your video to explain it!

[@Mark-fl3kx]

That was a lot to take in, in such a short time.

[@DragonSephi87]

i like how she seems genuinely interested and excited about it, how the heck do i always end up on these channels from 3d modelling at 7am when i should be sleeping

[@why_though]

1:29 soo... are they intentionally drawing a tank in the sky with the observations or is that just an inside joke...

[@Zentiu]

Thats exactly what i thought the moment i saw it! I was like 'Hey, thats a tank!'. I hope they are drawing a tank. I can understand observing hours on end can be quite boring.

[@Zentiu]

@Jack BURDETT God of tanks? The constelation of the tank? :P I think we need a tank bible.

[@Supernov4]

star wars duh

[@Xeridanus]

This was worth the wait! Thanks for your work as usual Becky! I bet Sam had his ear talked off when it came out. :P

[@mdb1239]

Before doubting GR, I would DOUBT any-and-all simulations of universe formation. Simulations are fraught with assumptions and even errors.

[@eckligt]

That was my thought as well. If the simulation turns up something that doesn't fit with observation, it is more plausible that some technical detail of the simulation is off than that the basic laws are wrong.

[@xyzpdq1122]

I liked the profane bloopers 😂 Also the new lighting scheme for the videos is great, very mellow. This was a suuuper difficult topic and I may need to watch the video again. Good interview though, these are real fun. ~fin~

[@DavePigott2000]

If it's more evenly distributed, surely we're looking at a new fundamental force rather than dark matter/energy. Quantised Inertia seems to be a more realistic explanation. All that said, keep doing what you're doing Becky. Love how you popularise astrophysics.

[@jr.bobdobbs]

"just a little tweak to general relativity is needed". Little did they know a paradigm shift of magnificent proportions was coming. - this note was brought to you from your future selfs.

[@GordyB666]

Just discovered your channel when KZbin recommended the JWST video. Love your content and enthusiasm. 👌

[@mienaikoe]

That wine glass trick was really clever.

[@alwaysdisputin9930]

yeah that was the best bit - explaining clearly the difference between weak lensing & the arcs + how we're seeing more than can be explained with regular matter alone

[@stephenj.rushford7292]

I love your videos, Dr. Becky! It would be wonderful to hear your explanation on the differences, and any commonalities, among….astronomy, astrophysics, cosmology.

[@MrBobbyANDCookie]

As an Astrophysics PhD student who finds reading papers extremely difficult and pain staking, THANKYOU FOR THIS SUMMARY

[@shawnalovely4054]

I am working toward a BA in Math so I can eventually get a PhD in astrophysics. When my parents get mad that I'm on my phone. I'm usually readings thesis papers or dissertations. I love it.

[@PatrickPoet]

That was brilliant:) Thanks for starting off with an overview of what we know and what we think we know and what we hope to know. Good interview. I'm so excited!!!

[@eckligt]

Just a question of terminology: When the main hypothesis is that it is another force of nature, why then does it get called dark energy and not simply dark force? If we're dealing with a force that pushes, then I'm sure there is some energy carried by that force, but why focus on the energy and not the force? Isn't the energy secondary? Given that we're able to give a percentage of the energy budget of the universe that is currently in dark energy, I assume dark energy is in some way commensurable with other forms of energy, and can be measured literally in joules. So it doesn't sound like the choice to call it "dark energy" is entirely hand-wavy.

[@TheFinagle]

last I knew we dont know anything about the truth behind dark energy or dark matter beyond our own equations about other things not adding up. For all we know the answer to dark matter is a math mistake and the answer to dark energy is its just diffusion.

[@UniDocs_Mahapushpa_Cyavana]

Maybe because that would be confusing if a new mysterious force is discovered.

[@UniDocs_Mahapushpa_Cyavana]

@@TheFinagle Diffusion that has an effect on places further away than can be reached by the speed of light is kind of its own thing.

[@MB-pj8sb]

I consistently dive into a bunch of physics channels on youtube. And this is quite comfortably one of the best out there!!!❤❤❤

[@DrBecky]

Wow, thank you!

[@MercuryIsHg]

Thank you Dr Becky, a real good explanation. Your taking the time to read & reflect made for a really clear and considered presentation. Shame the mainstream media don't follow your excellent example. Keep up the good work!

[@Biomirth]

Yeah, lemme just call up the lead author of the most tantalizing paper to come out of this news. I often wonder what it must be like to feel so connected to research in your field.

[@Rubrickety]

The conversation with Dr. Amon raises an important question: when do we get to see you play your ukulele?

[@Omnifarious0]

I like your chats with other scientists. They are informative. And your chat with Alexandra Amon is also interesting because she has such an unusual and interesting accent.

[@TraditionalAnglican]

Alexandria’s paper & its follow on s might net her a Nobel Prize….

[@Omnifarious0]

@@TraditionalAnglican - All the better. 🙂

[@BlackHoleForge]

I absolutely love your guests enthusiasm for the future.

[@foxtrot.tango.whisky]

@Dr.Becky - great video, as always! Is there any chance you could provide us with a video from an astrophysicist's perspective of "CCC" or CONFORMAL CYCLIC COSMOLOGY? It would be amazing to hear your thoughts on the matter and also it would fantastic to hear your description / explanation of CCC. I for one would absolutely be over the moon to see you upload such a video. All the best

[@alishba2007]

The DES survey is really cool!

[@IMortage]

You're nodding very vigorously during the interview. 😄

[@jessstuart7495]

Dark Thesis: When you know your thesis topic is out there, but you're not exactly sure what it is.

[@diwitdharpatitripathi7427]

Hey Becky, the dark energy. And the dark matter. The unsolved mystery.

[@alessandragnecchi8767]

Wow, this video is amazing!!! I'll be looking for a way to get closer to astroparticle physics in my next research!! And I definitely had the same problems with turned off mic during lectures recording ;) congratulations again on this fantastic video!

[@DoorknobHead]

27:24 Dr. Becky said a potty word? Human, confirmed.

[@arvindiyer1649]

😆

[@Veptis]

This video is more valueable than any headline I have seen over the past two months. I still enjoy the Anton Petrov videos tho.

[@dougg1075]

Hologram masters: “ we had no idea they would be so damn curious “

[@Zee3po]

Thank you so much for breaking down these topics in such a way as to make them accessible for enthusiasts such as myself, who find these topics so interesting.

[@williamswenson5315]

@27:25, you'll find a lip reader's paradise. A very human moment for our Dr. Becky.

[@crawkn]

One thing that was reported from the earliest images from JWST was that galaxies were more developed than was expected for that far back in time, indicating we had something wrong in our models, so I'm wondering how statistical variance can be determined from expected undistorted galaxy shapes that we haven't even dependably modeled for a given distance from us.

[@paulrobertson5550]

Maybe instead of “crisis” it could be called “The Expansion Deviations”.

[@nicholasmills6489]

The Hubble constant is not constant. I think it’s connected to entropy and it varies throughout the universe and time. That is way we cannot confirm the constant because it varies in direction and back in time. We need to view the universe not from our position on the earth but from outside our universe. It’s relative and changes our frame of reference.

[@TheMyrkiriad]

I am here for science but damn these astrophysicists are cute !

[@huonghuongnuquy7272]

Hello, I'm from Vietnam, I'm 23 and soon 24 year old. I have a big love for science just like you. My big dream is solve the dark matter problem and the united theory one day

[@rogerdudra178]

My degree in computer science was focused on simulation modeling and analysis at MSU in the late 80's. Born in 1949, I went back to school, cuz I was dumb. The thing I realized about simulation modeling was the definition of variables had to display some level of process understanding.

[@fistofren3483]

I love your videos and I especially appreciate that you don't jump on this US-alien-hype. Keep up the good work💖

[@lulugurl6547]

I just love Dr. Becky.! 🥰 Thank you!

[@Alakazzam09]

What a great time to be alive and a cosmic nerd. Thanks for the breakdown Dr. B

[@onebylandtwoifbysearunifby5475]

Simply Amazing: all this information comes from EM waves, light. Physical information delivered to us in the best Mail system ever invented. (Keeps me in awe everytime).

[@Scribe13013]

I think there will be a combination of the big rip and the big crunch...I call it the big toke. It will be a sight to see...and all eyes will see It...with eyes so clear...yet eyes so softly clouded.

[@traceytugby8562]

Between Dr Becky and Bradey I'm set for always getting great videos

[@PatrickPoet]

Do wish you'd stated at the start how you were going to use the term greater though, greater in magnitude? That was the only quibble in the whole article for me. I'm so happy and excited!!! Yay us!!! Humans are cool!!!

[@Mr.Nichan]

5:21 I love the way she slurs "Not only that, though." The /t/ becomes an [ɹ]. (I should probably mention at this point that I'm a bit of a linguistics nerd.)

[@mattc3738]

That candle/glass at 17:10 looks really interesting, how good of an analogy for matter bending light is it?

[@ffstopP]

All your videos are wonderful. Loved this one big time.

[@johnshull2454]

It’s a lot to digest for me but it makes you think and see everything in a new, better light.