NSF NOIRLab rings in the New Year with a glittering galaxyscape captured with the Department of Energy-fabricated Dark Energy ...

Pandora's Cluster (Abell 2744): A chaotic merger of multiple galaxy clusters, forming one of the most complex structures in the universe.

Using the Very Large Array (VLA), an international team of astronomers have observed a nearby galaxy merger known as CIZA ...

It’s almost globular cluster season. One of the mysteries of our galaxy and every other, these dense groupings of up to a million stars—the most massive and oldest star clusters in the ...

Results of the observational campaign, presented in a paper posted Dec. 2 to the preprint server arXiv, yield important insights into the globular cluster system of this galaxy. Globular clusters ...

His current interests include Sunyaev-Zel'dovich effect galaxy cluster surveys and fine scale CMB anisotropy ... 2009, "Sunyaev-Zel'Dovich Effect Observations of the Bullet Cluster (1E 0657-56) with ...