Come to our conference in April next year! 🧭🌌🏰 👉 Submit your abstract here: docs.google.com/forms/d/e/1F...

Currently watching the first light from @vrubinobs.bsky.social’s 3200 megapixel camera 🤩

A wonderful summary of our results on the enigmatic galaxy GS-z13-1 came out in Physics Today a few days ago! pubs.aip.org/physicstoday...

From Niloofar Sharei @astroneal.bsky.social : What do you get when baby galaxies crash and light up in UV? A surprising early signature of cosmic dust. 🔭✨☄️ astrobites.org/2025/04/21/dust-ahead-of-schedule-uv-bump/

🧵 Today is paper day for me! Usually I don’t post about papers but I have a special soft spot for this one: the detection of the Gunn-Peterson trough in high-redshift *galaxies* !! arxiv.org/abs/2504.02683 #astrosci #extragalactic #cosmology

A paper in Nature reports observations from the JWST showing one of the earliest known galaxies caught in the act of reionization. The observations place the onset of cosmic reionization to at least 330 million years after the Big Bang. https://go.nature.com/4hLNK12 🧪 🔭

Paper day! And it’s a big one 🥳 Today, a team of researchers led by @joriswitstok.bsky.social — A DAWN fellow @cosmicdawncenter.bsky.social and Post-doc in the PRIMORDIAL group — published a paper in @nature.com reporting the detection of Lyman-alpha emission from a galaxy at redshift 13 (!) 🧵👇

Earliest sign of the Universe becoming transparent discovered with #JamesWebb. @joriswitstok.bsky.social et al. detected the escape of your fav UV light, Lyman α, the signature of an ionized bubble, only 330M years after the Big Bang. 🇬🇧 cosmicdawn.dk/news/james-w... 🇩🇰 cosmicdawn.dk/news-in-dani...

Using the unique infrared sensitivity of #NASAWebb, researchers can examine ancient galaxies to probe secrets of the early universe. Recently, a bright hydrogen emission from a galaxy in an unexpectedly early time in the universe’s history has been identified. (1/4) 🧵 🔭 🧪

Astronomers have identified powerful hydrogen emission in one of the most distant galaxies known — a probable sign that we are seeing some of the first hot stars from the dawn of the Universe ✨ All thanks to the NASA/ESA/CSA James #Webb Space Telescope. Read more 👉 www.esa.int/Science_Expl... 🔭🧪☄️

Unexpected, bright hydrogen emission caught astronomers by surprise 🔭😳 I'm proud to have led a study reporting this surprising result, which is now published in @nature.com. Read more in this Behind the paper post and in the thread below! 👇

📣 Using ALMA 📡, in which ESO is a partner, astronomers have discovered oxygen in the most distant known galaxy! This record-breaking detection is making scientists rethink how quickly galaxies formed in the early Universe 🤔 Read more: www.eso.org/public/news/... 🔭 🧪 ☄️

Proud to have been part of Katherine's first PhD paper 👏👏 Her detailed study of a distant galaxy reveals what is likely an ongoing merger in a complex system containing both young and old stellar populations with new evidence for the presence of small carbonaceous grains – read more below!

How do we learn about the anatomy of the most distant galaxy we currently know of? 🩻 Read more below! 👇

Had a wonderful time visiting the Kapteyn Astronomical Institute in Groningen last week. Congratulations to Roberto for being this year’s Blaauw professor and thanks to everyone at Kapteyn for your hospitality!

Reminder about next year's conference on obscured star formation at the Kavli Institute for Cosmology, Cambridge (22-26 April), organised by Jan Scholtz and me. Abstract submission closes soon! sites.google.com/cam.ac.uk/sf...

Looking forward to learning more about the origin and fate of cosmic dust this week in Gothenburg ✨ #CosmicDustSweden2023

Jan Scholtz, myself et al. are excited to announce an upcoming conference at the Kavli Institute for Cosmology. "Raising the veil on star formation near and far" is a meeting dedicated to Richard Hills, remembering his contributions to understanding obscured star formation across cosmic time: