Galaxy Cluster Relaxed Now, but Was Wild in the Past

BYLINE: Megan Watzke Newswise — The galaxy cluster Abell 2029 is sometimes described as “the most relaxed cluster in the Universe.” This moniker does not arise from some sort of…

Painting Galaxy Clusters by Numbers (and Physics)

BYLINE: Megan Watzke Newswise — Galaxy clusters are the most massive objects in the Universe held together by gravity, containing up to several thousand individual galaxies and huge reservoirs of…