Had some fun playing with visualizations that show the evolution of the cosmic web in an image instead of a movie (high-res versions are here: www.benediktdiemer.com/visualizatio...)

Do you lie awake at night worrying about cosmic collapse? On Feb 18th, @benedikt.bsky.social will tell us why cosmic collapse keeps your lights on! Curious? Come to @dc9club.bsky.social to learn more! RSVP for your free ticket here: dice.fm/event/py7okw... Science made possible by your govt agencies

This should be a fun one! Really looking forward to finally doing AoT DC 🍺🔭

I'm super excited about this paper on the arXiv today led by UGent grad student Andrea Gebek! Why are there basically no red galaxies in IllustrisTNG at cosmic noon? It's tempting to think that there might be something wrong about SFRs, but what about dust... arxiv.org/abs/2501.12008

On the arXiv: great work led by graduating student John Soltis and Michelle Ntampaka. The issue: the accretion rate is key for the properties of cluster halos, but we have no reliable observational proxies. So we decided to use ML to look for "optimal" info in realistic X-ray/SZ maps from MTNG.

Wrapping up 10 days in China by catching up with my undergrad adviser (after 16 years), friends, and collaborators... thanks for the fantastic visits, Tsinghua and Jiao Tong! A truly memorable trip. Apologies to all the ducks that got harmed in the process.

Just logged out of twitter for good and my mental health immediately improved by 6.3%

Need the age of the Universe at z = 5 but only got a phone? Wanna compute a correlation function without python? Fear not, for we are proudly presenting Colossus-Web, a powerful online cosmology calculator! colossus.astro.umd.edu More info in replies...

UMD astronomy is hiring! It's an open call, though we're particularly interested in observers this time. Feel free to message if you're interested and have questions, since I went through the process not that long ago. jobregister.aas.org/ad/2ac49c51