OSU’s Xavier Siemens wins highest international honors in astrophysics

By Daniel Fuentes on Feb. 19, 2025
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Photo of astrophysicist and professor Xavier Siemens

Xavier Siemens, a renowned astrophysicist and professor at Oregon State’s College of Science, has been awarded the prestigious 2025 Bruno Rossi Prize, one of the highest international honors in high-energy astrophysics, for his groundbreaking work uncovering evidence of binary supermassive black holes.