Gamma-ray bursts are the most energetic events in the Universe, typically lasting milliseconds to a few seconds.

Now for the first time since their discovery 50 years ago, a gamma-ray burst kept gamma-ray-bursting for a full day!

🇬🇧 www.eso.org/public/news/...
🇩🇰 www.eso.org/public/denma...
@dg.dk

📸Are you a researcher in Denmark with a powerful photo that captures your science? For the eighth year in a row, the DNRF invites you to bring your research into focus through our annual photo competition. 👀Deadline Sept. 23, 2025. dg.dk/en/dnrf-phot...

"…science textbooks are being rewritten in real time"
www.issibern.ch/press-releas...

The conference is chaired and co-chaired by @kosmoskasper.bsky.social and @joriswitstok.bsky.social, respectively, and is designed to be inclusive of in particular early career researchers.

More info and abstract submission (𝗱𝗲𝗮𝗱𝗹𝗶𝗻𝗲 𝟯𝟭 𝗢𝗰𝘁𝗼𝗯𝗲𝗿) in the link above 👆

The five main themes of the workshop are:

🌀 Galaxy formation at cosmic dawn,
🌀 Reionization,
🌀 Origin of massive galaxies and AGN,
🌀 Dust and chemical enrichment, and
🌀 Galaxy morphology and dynamics

in the era of JWST, ALMA, and Euclid.

We are excited to make the first official announcement for the 𝗖𝗵𝗮𝗿𝘁𝗶𝗻𝗴 𝗖𝗼𝘀𝗺𝗶𝗰 𝗗𝗮𝘄𝗻 conference in Copenhagen in 12–17 April next year 🤩

cosmicdawn.dk/meetings-and...

The 150 spectra include
🌀 new deep spectroscopy of 10 key targets,
🌀 weak Hα+absorption features
🌀 2 AGNs out of 10 key targets
🌀 new Dn4000/UVJ insights

This is just the start — deep dives into stellar ages, dynamics, & more coming soon.

A public data release is also planned.

Just out: the #DeepDive survey; a new JWST program to uncover how massive galaxies quenched at z ~ 3–5.

The first results include spectra of 150 quiescent galaxies.

Big thanks to Danmark Frie Forsningsfond/Sapere Aude & @dg.dk for their support!
arxiv.org/abs/2506.22642

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

The COSMOS-Web team — including several DAWNers — has just released their full field of 780,000 galaxies.

Ethan @startswithabang.bsky.social Siegel provides a great overview of the survey.

You can also explore the field yourself in this interactive map: cosmos2025.iap.fr/fitsmap.html

Bachelor student Charlie Lind-Thomsen led this project, zooming in on astonishing details of dust clouds in nearby galaxies:
🇬🇧 nbi.ku.dk/english/news...
🇩🇰 nbi.ku.dk/Nyheder/nyhe...
@dg.dk

Behold the homemade 1.9 m radio telescope, built by DAWNers Gaurav, Kaj, Jiazhe, and Omar📡

The telescope received its first light last week, where the team was able to observe neutral hydrogen in the Milky Way from the institute's backyard.
cosmicdawn.dk/news/first-l...
@dg.dk

Huge congrats to @cdplagos.bsky.social who has just been awarded the Pawsey Medal by the @science.org.au for her research in galaxy evolution! 🏆

The Medal is awarded to early career scientists for outstanding achievements in physics.
vimeo.com/1064968475/0...

✨Chamilla Terp has unraveled a puzzle that experienced astrophysicists have long struggled to solve. Meet Chamilla and learn more about her dreams and daily life as a young astrophysicist. @cosmicdawncenter.bsky.social
vimeo.com/1072508414

Congratulations to @kosmoskasper.bsky.social on being among the top 100 talents in Denmark 🥳
cosmicdawn.dk/news/kasper-...
@dg.dk

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...

For instance, Shuntov et al. show how the galaxies' dark matter halos initially outpace galaxy assembly.

However, as accretion of gas and dark matter begins to slow down after some 1.5–2 billion years, halo growth stagnates while accumulated gas reservoirs keep star formation going.

In an extensive study on galaxy evolution through cosmic time, Marko Shuntov presents a plethora of interesting result, including how the total mass of the galaxies' stars and dark matter are related?

🇬🇧 cosmicdawn.dk/news/new-ins...
🇩🇰 cosmicdawn.dk/news-in-dani...
@dg.dk

Time for the annual followup meeting with our main funding body, the Danish National Research Foundation.

We're delighted to have this opportunity to discuss not only our own research, but also the Foundation's interests, as well as this year's focus: "Fair recognition of contributions to research"