Extragalactic streams in Cosmological Halos:
Pearson et al. 2026
Welcome
Sarah Pearson is an Associate Professor at the Technical University of Denmark (DTU Space), where she runs the Dark Matter Group, funded by an ERC starting grant and a Villum Young Investigator grant. The group focuses on galactic dynamics and stellar streams to constrain dark matter. Pearson has extensive experience giving lectures to both scientific peers and to non-scientific audiences. Follow these links for more details on her Publications, CV (pdf), and Research.New Nature paper out!
PhD student, Julie Holm, has just published her very first paper, which presents evidence for the first globular cluster stellar stream from beyond the Milky Way.
Published version
arXiv: 2608.12254
Politiken article
CNN article
Space.com article
Phys.org article
Press U. CPH
Illustreret Videnskab article
Press Northwestern U.
Videnskab.dk article
Other news:
(2026) New paper out on Extragalactic streams in Cosmological Halos: Pearson et al. 2026, arXiv: 2609.00526.
(2026) Hanneke Woudenberg is joining our group at DTU as a postdoc in November!
(2026) See Politiken's recent audio, video and written article about my research on dark matter and stellar streams here!
(2026) Big news: I started a new position as a tenured Associate Professor at DTU Space!
(2026) I'm excited to announce the publication of our new paper: Nibauer & Pearson 2026, which makes it possible to test dark matter theories with extragalactic streams using our new X-Stream code.