Uploaded August 2024 | Updated September 2026, 2 weeks ago
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
Freedman et al. (2024) - arxiv.org/abs/2408.06153
👩🏽💻 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.
drbecky.uk.com
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
Freedman et al. (2024) - arxiv.org/abs/2408.06153
👩🏽💻 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.
drbecky.uk.com
