Has JWST solved the crisis in cosmology? Or made it WORSE? #shorts

It’s finally here! the research paper we have all been waiting for - JWST’s look at the crisis in cosmology, aka the Hubble Tension where we’re getting different answers for the expansion rate of the universe depending on what method we’re using. If you remember i did a video on this when they presents work on the conference circuit back in spring, but we didn’t have any details. Well now we do, this new paper from Freedman and collaborators appeared online today, although its still not gone through peer review, and it has essentially said that they’ve now used JWST instead of the hubble space telescope to do this, there’s no longer a problem, the values for the rate of expansion of the universe with these different methods don’t disagree anymore, at least not within the errors on the measurement. Question I still have is what changed between hubble and JWST data? So I’m going to dive into reading this research paper this week, absorb all the details, and report back in my next Night Sky News episode for August which is coming out next Thursday 22nd, so make sure you’re subscribed so you don’t miss out! #cosmology #JWST #astrophysics

👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars.

[sadaksara]

Dr. B. always on top of the scoop. Looking forward to NSN.

[anotherelvis]

Please link to the pre-print. The title is: Status Report on the Chicago-Carnegie Hubble Program (CCHP): Three Independent Astrophysical Determinations of the Hubble Constant Using the James Webb Space Telescope

[noammusk]

Can't wait for the full video!! Please drop it soon.

[laggybum]

You're leaving us on ANOTHER cliffhanger?!?

[michaelwatson]

I look forward to getting your take on this question.

[noelstarchild]

So exciting to hear this news...look forwards to your upload next week...Yay!

[joen]

We have our reading assignment for next week’s class/video.

[benchance]

Yes! Eagerly waiting for this drop, Dr. B!!

[trajkoivanov]

Your eyes talking more then your voice my dear! Youth & enthusiasm in great flow.

[jed]

Please do let us know your full review of this paper.

[NZRic]

Can't wait for the brief debrief!

[DannyJoh]

Can't wait! So excited to hear your explanation 😃

[BlackEyedGhost]

I'm very hyped for this. Thanks for doing the legwork for our sake.

[graemebrumfitt]

Looking forward to it Dr B. TFS, GB :)

[kayinoue]

Time for me to find this on sci hub. Nevermind I'm reading three other papers. Could you be so kind as to drop a link, Becky? I'm sure lots would appreciate

[dmc]

64 m/s? I thought it was expanding faster than light.

[GundamAngelicDevil]

Thank you for translating it so my potato brain can understand it.

[paulgreen]

Great news! Looking forward to it! ... but, ya know, your video titles are all kinda the same? Ya might wanna think about puttin' the date in or summin'.

[CircoVega]

JWST is just an analysis of electromagnetic spectra and will have the same constraints as the other satellites. It's probably not going to tell us much. JWST data needs to be cross referenced with gravitational waves from the same emitters such that the distance ladder can be taken out of the equation.

[walkerdobson]

@DrBecky We should consult your kitty cat. Im certain they would have the answer 😅👌