Confirmed speakers listed (and continuously updated) on homepage!
darkenergy.discussingresearch.com
05.03.2026 01:28
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Confirmed speakers listed (and continuously updated) on homepage!
darkenergy.discussingresearch.com
Exciting!
...........
Dark Energy from Home 2026 will be held from 21โ24 April.
Registration is now open: darkenergy.discussingresearch.com/registration
Abstracts submitted by 24 March at 23:59 UTC will receive equal consideration. Later submissions will be reviewed at the organizersโ discretion.
It's the day everyone on Bluesky looks forward to:
The talk release day of a from Home conference!
Early Universe from Home 2026 Talks just dropped. Check them out, there's lots of really interesting stuff going on.
Stay tuned for updates regarding the first few themed discussions...
Discussions at Early Universe from Home kick off in just under two weeks, with talks released to participants in one week.
Check out the updated list of speakers here: earlyuniverse.discussingresearch.com
and register here: earlyuniverse.discussingresearch.com/registration/
"The evidence for dynamical dark energy relies too much on DESI's BAO, which is just one data set... "
*Evidence for dynamical dark energy now seen with Dark Energy Survey BAO too*
youtu.be/ukMQgHj6NMI
Can gravitational waves get gravitationally lensed?
Yes!
Have we observed any such events?
Maybe!?๐ฎ๐
youtu.be/ZGqOpDTL8k4
Want to know how to get at the non-linear cosmological scales to test modified gravity, using future large scale structure observations?
Cosmology Talks has your back: youtu.be/nIdCpcObSVU
Fantastic time discussing whether the latest blockbuster cosmology results really do show that Dark Energy is evolving!
Brilliant explanations from @clairelamman.bsky.social
, @tamarastro.bsky.social and @justshaun.bsky.social
Check it out!
Full talk: youtu.be/reNicLW2vpY?...
๐งชโ๏ธ
Unfortunately it was pretty cloud during #Sunset this year at the South Pole, but our winterover Sim managed to catch this picture just before the weather got bad, with the moon over SPT! #southpole #Antarctica
A two panel figure. The x-axis is omega_m, the fraction of matter in the Universe. The y-axis is S8 on the left and sigma_8 on the right. Both are measures of the 'clumpiness' of dark matter. The contours show that the KiDS data (two measurements using slightly different statistics, COSEBIs and Bandpowers) agree with the data from the Planck CMB survey.
๐ฅณ It's paper day for the completed #ESO Kilo-Degree Survey. We end our journey with a consistent picture of #cosmology ๐ฒ
I've been co-leading KiDS for 12yrs & I'm so proud of what the team's achieved. If you're at the #Euclid meet, go to Angus Wright's talk @10am today!๐ญ
โน๏ธ: arxiv.org/pdf/2503.19441
The Cosmology Tension Gods giveth and the Cosmology Tension Gods taketh away ๐คท
What if I told you there is no S8 tension?
youtu.be/PIQKe-tW1xQ
Haha ๐ , I'll let you know if Enrique from Universe 2845b has any great insights.
Rather appropriately, given this proliferation of "from Home" events, the next one to announce is:
Multiverse from Home!
I suspect discussion won't be hard to come by in this one ๐
.
multiverse.cosmodiscussion.com
Register now, or in another branch of the multiverse, you've surely registered in one of them! (Right?!)
"Tabletops" in space might still be necessary sometimes though ๐.
Another "from Home" conference has launched (complete with the *perfect* banner image)...
*Tabletop Scale Cosmology*
Register now to discuss, and hear about, how you don't need giant telescopes and colliders to learn about the cosmos!
tabletop.cosmodiscussion.com
There are certainly examples of groups revealing results too soon, before double/triple checking possible interpretations ๐ .
I think I do disagree on the scaffolding metaphor, but I'm not sure my disagreeing is interesting ๐
.
I'd liken it more to halftime at a sports game, or showing partial counts on election day (In terms of how interesting people find it, not how feasible it is to do without compromising other things)
I don't *think* I disagree with any/most of this. Me calling it the "dream" did mean to imply it isn't necessarily feasible, partially for reasons you point out.
It can still be a dream to aspire to get *closer* to, without compromising too much on other important things of value.
One last thing I realised after writing everything above...
Going from ฮCDM to "wCDM", with w0 \neq -1 and wa \neq 0 doesn't, as far as I know, break any other observation (yet!)
So many other solutions to tensions/problems within ฮCDM fix one thing, only to bust something else.
Ah, cool!
You should polish them and make them public somewhere ๐.
"where the dust will settle" ๐
dangerous choice of language in astronomy ๐
This is really cool. I'd love for something like this to be recorded and shared afterwards so that the rest of the world can re-live the excitement.
(The dream would be one day for the scientists and public to be unblinded simultaneously, with expert commentary as it unfolds!)
A nice blog post by Gillian Beltz-Mohrmann about the DESI "unblinding" event last year, the excitement and the reactions:
www.desi.lbl.gov/2025/03/19/a...
A blocky lambda symbol crumbles as it is pulled apart by creatures representing Baryon Acoustic Oscillations, the Cosmic Microwave Background, and supernovae. Caption reads "something has to give..." Credit: Claire Lamman
DESI's DR2 BAO results are out!!
TL;DR... 1/n
@desisurvey.bsky.social
๐ New BAO analysis from the 3-year observations (DR2). Long story short, as follows.
1. DESI alone is consistent with LCDM. ๐ Boring
2. DESI and Planck have a 2.3 discrepancy in ฮฉm-H0rd plane. ๐Interesting.
Yeah, I agree with that framing too. It does seem to look like wo,wa though (e.g. from the binned w(z) plot).
Now that at least the yr1 data is public I'm looking forward to which a posteriori model floats to the top of the a posteriori best fit pile ๐
. (Hopefully one well motivated one rises up!)
