2025-07-08

Oskar Klein Centre

Final steps in stage-iii surveys: kilo-degree team gathers at OKC for 6x2pt legacy analysis workshop

Last week, a small team of cosmologists from Spain, Germany, the Netherlands, and Sweden gathered at the Oskar Klein Centre (OKC) in Stockholm for an intensive workshop focused on finalizing the Kilo-Degree Survey (KiDS) 6x2pt Legacy Analysis.

2025-06-30

Oskar Klein Centre

LSST telescope launched – New era of research at the Oskar Klein Centre

The Vera Rubin Observatory's new LSST telescope is now operational, marking the start of a new era in astronomical research at the Oskar Klein Centre (OKC). With funding previously granted by the Knut and Alice Wallenberg Foundation totaling SEK 30 million, OKC now significantly enhances its capability to explore fundamental questions about the universe.

Astronomy and Cosmology - Theme page Physics - Theme page

2025-06-27

Department of Physics

Summer School in Stockholm Gathers Nobel Laureates to Celebrate 100 Years of Quantum Science

"Since last year we arranged a successful Winter School in Sanya, Southern China, and my research project has received fundings until 2030", says Frank Wilczek. This year’s event, coinciding with UNESCO’s global celebration of 100 years of quantum physics, brought together graduate students, postdocs, and some of the most distinguished minds in science — including several Nobel Laureates.

Physics - Theme page

2025-06-27

Department of Physics

Could Dark Matter Be Made of Heavy Axions After All?

Dark matter might not need to be made of tiny, lightweight axions after all. This paper shows that much heavier axions, once thought too unstable, could survive to the present day and account for dark matter. Axions, hypothetical particles that barely interact with light, are a primary candidate for dark matter. Scientists believed axions had to be very light, since heavier ones would decay too quickly into photons and disappear. Our new study challenges this view. We propose a new force, similar to the one that forges protons, able to hold together "dark gluons" into stable clumps called glueballs.

Physics - Theme page