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Today we have released the major result for measurements of Dark Energy and Dark Matter using Type Ia Supernovae in the Dark Energy Survey (Dark Energy Survey)! We've been working towards this robust result for more than a decade arxiv.org/abs/2401.02929 arxiv.org/abs/2401.02945 a🧵

We've released our final analysis of the expansion of the Universe using Type Ia Supernovae!! Read about the hard work of our many supernovae scientists over the past several years. news.fnal.gov/2024/01/final-… We're not done yet! More results to come using other probes in 2024.

More on the great result, and some nive quotes by Tamara Davis and Duke Physics Maria Vincenzi !

Congratulations to the whole @TheDESurvey team, in particular Maria Vincenzi and Ryan Camilleri who were heroes helping me in the final push to get this paper out, and @danscolnic & Dillon Brout for co-leading the working group and cosmological analysis. arxiv.org/abs/2401.02929

“The DES Collaboration contributed to the growth and professional development of an entire generation of cosmologists,” research fellow Maria Vincenzi speaks to Symmetry Magazine on the supernova results of the Dark Energy Survey. symmetrymagazine.org/article/final-…

My favorite moments being a research advisor are when we are all eating together, and people start laughing/teasing about some super obscure science point. It's a joy. Duke Physics

Breaking news!🎉 Today we announce the most precise measurements of our expanding Universe using the BAO signal in 6.1 Million galaxies and quasars from Year 1, tracing dark energy through cosmic time. See Berkeley Lab PR at newscenter.lbl.gov/2024/04/04/des… 1/10 📸 Credit: Claire Lamman

Did you notice some cool Dark Energy Survey supernova papers on the arXiv today? Cosmology Talks will be having talks on many of them, dropping one per day this week. To start, here is a talk on the data set itself and the base cosmology constraints youtu.be/y9ocwGJnGwk

With regards to all the chatter about DESI+SN results and the interesting w_a values, I wanted to do a thread about what's the same/different between all the new SN analyses, and what changed from the original Pantheon. This is also partly motivated by a really nice paper by

Two new interesting H0 measurements on arxiv last night: arxiv.org/abs/2408.03660 (Boubel et al.). - and arxiv.org/abs/2408.03474 (Lee et al. - @abigail_j_lee). The first does new Tully-Fisher and gets high H0, the second does JAGB and gets lower. Interestingly, I think both

George seems to say this is a DES5yr problem in fitting low-z. But since SNe in any analysis have an arbitrary luminosity or zeropoint (degenerate with H0), one can’t easily say whether the problem was with the low-z or high-z (where to put y=0 in his Fig. 4). Since George

Mechazilla has caught the Super Heavy booster!