https://gsecars.uchicago.edu/2026/05/27/roberto-colina-ruiz-presented-a-talk-on-cr-speciation-at-the-nsls2-weekly-science-update-meeting/ 2026-05-27T18:27:04Z GSECARS en Roberto Colina-Ruiz presented a talk on Cr-speciation at the NSLS2 Weekly Science Update Meeting 2026-05-27T18:27:03Z Blog https://gsecars.uchicago.edu/2026/05/27/gse-welcomes-sam-affaneh/ 2026-05-27T18:13:47Z GSECARS en GSE welcomes Sam Affaneh 2026-05-27T18:13:46Z Blog